ICC Class B UST System Operator - BU Exam Book Package Guide

The ICC Class B UST System Operator - BU examination is designed for underground storage tank operators, facility personnel, compliance staff, environmental professionals, service providers, and owner or operator representatives responsible for the day-to-day operation of regulated UST systems.

Class B operator responsibilities may involve tank and piping systems, release detection, spill prevention, overfill prevention, corrosion protection, inspections, equipment testing, maintenance, recordkeeping, emergency response, suspected-release reporting, and regulatory compliance.

The ICC Class B UST System Operator - BU collection currently includes a complete exam book package containing EPA regulations, EPA operating guidance, operator-training material, and PEI recommended practices used to study UST system operation and compliance.

Available BU Exam Book Package

• ICC Class B UST System Operator - BU Exam Book Package: $2,245.00 sale price, reduced from $2,345.00

This package is intended for candidates who want the listed UST regulatory and technical references in one collection for focused exam preparation.

Because the BU examination draws from several publications, candidates should learn the purpose of each reference and practice selecting the correct book for each type of question.

What Is Included in the BU Exam Book Package?

The current package listing identifies the following EPA and PEI publications:

• EPA 40 C.F.R. Part 280.10-280.74: Technical Standards and Corrective Action Requirements for Owners and Operators of Underground Storage Tanks
• EPA 510-B-00-008: Operating and Maintaining Underground Storage Tank Systems
• EPA 510-B-97-007: Straight Talk on Tanks
• EPA 510-K-95-002: Musts for USTs
• EPA 510-K-95-004: Dollars and Sense: Financial Responsibility Requirements for Underground Storage Tanks
• EPA 510-R-07-005: UST Provisions of the Energy Policy Act of 2005—Grant Guidelines to States for Implementing Operator Training Provisions
• PEI/RP1200, 2017 Edition: Recommended Practices for the Testing and Verification of Spill, Overfill, Leak Detection and Secondary Containment Equipment at UST Facilities
• PEI/RP500, 2019 Edition: Recommended Practices for Inspection of Motor Fuel Dispensing Equipment
• PEI/RP900, 2017 Edition: Recommended Practices for Inspection and Maintenance of UST Systems

Candidates should compare this package list with the current ICC Exam Catalog and the requirements of their state or local implementing agency before scheduling the examination.

Who Should Consider This Package?

The BU Exam Book Package may be useful for:

• Designated Class B UST operators
• Gas station and convenience-store personnel
• Facility maintenance supervisors
• Environmental compliance employees
• Fuel-system service providers
• Owner or operator representatives
• UST inspectors and compliance consultants
• Personnel responsible for monitoring equipment and records
• Candidates completing a state-recognized operator-training path

The exact definition of a Class B operator and the responsibilities assigned to that person may vary by state.

What Is the ICC BU Examination?

The BU examination is ICC’s national Class B UST System Operator examination.

Current official ICC information lists:

• 60 examination questions
• One hour and 30 minutes of testing time
• National UST examination classification

The current product package describes the BU examination as open book. Candidates should confirm the permitted references, book-modification rules, testing method, and current technical details before purchasing the exam.

Passing the BU examination does not automatically provide approval to serve as a Class B operator in every state. The applicable implementing agency determines whether the exam satisfies its training, testing, documentation, and retraining requirements.

What Does a Class B UST Operator Do?

A Class B operator generally implements the day-to-day regulatory requirements that apply to the underground storage tank systems for which the operator is responsible.

Common responsibilities may include:

• Monitoring the operational condition of UST systems
• Reviewing release-detection results
• Checking spill and overfill prevention equipment
• Verifying corrosion-protection requirements
• Coordinating required inspections and testing
• Maintaining compliance records
• Responding to alarms and unusual operating conditions
• Recognizing suspected releases
• Supporting required release reporting
• Coordinating repairs and corrective actions
• Training or overseeing Class C operators
• Communicating with owners, contractors, and regulatory agencies

The Class B operator may perform these tasks directly or ensure that qualified employees and service providers complete them properly.

Class A, Class B, and Class C Operators

• Class A Operator: Generally has primary responsibility for regulatory compliance, resources, personnel, and the overall operation of the UST system.
• Class B Operator: Generally implements day-to-day operation, maintenance, testing, inspection, and recordkeeping requirements.
• Class C Operator: Generally provides the initial response to alarms, spills, releases, or other UST emergencies at the facility.

One person may sometimes be designated for more than one operator class when that person completes all required training for each assigned role.

Confirm State-Specific Operator Requirements

UST operator-training requirements are implemented through federal, state, territorial, tribal, or local programs. Requirements can differ depending on where the facility is located.

Before purchasing the package or registering for the BU examination, candidates should verify:

• Whether the implementing agency accepts the national ICC BU exam
• Whether additional state-specific training is required
• The deadline for completing Class B operator training
• Whether a separate application is required
• Whether the credential must be renewed
• Whether periodic or violation-based retraining is required
• Where training certificates must be stored
• Whether one operator may oversee multiple facilities
• Whether facility-specific training is required
• Whether Class C operator training must be documented

Major BU Study Areas

BU preparation should include the regulatory and operational requirements that affect typical underground storage tank facilities.

• UST system components
• Tank and piping requirements
• Spill prevention
• Overfill prevention
• Release detection
• Secondary containment
• Corrosion protection
• Walkthrough inspections
• Equipment testing
• Operation and maintenance
• Repairs and compatibility
• Release reporting
• Corrective action
• Financial responsibility
• Temporary and permanent closure
• Recordkeeping
• Operator training
• Emergency response

Understanding UST Systems

An underground storage tank system includes more than the tank itself. Candidates should understand how all connected components work together.

Important components may include:

• Underground tanks
• Product piping
• Fill pipes
• Vent lines
• Dispensers
• Submersible turbine pumps
• Spill buckets
• Overfill prevention devices
• Containment sumps
• Under-dispenser containment
• Release-detection equipment
• Corrosion-protection equipment
• Automatic tank gauges
• Interstitial monitoring equipment

Candidates should know each component’s purpose, normal operating condition, inspection needs, and common signs of failure.

Tank Construction and Installation

UST tanks may be made from steel, fiberglass-reinforced plastic, composite materials, or other approved systems.

Study considerations may include:

• Tank material and construction
• Corrosion resistance
• Secondary containment
• Installation requirements
• Anchoring and buoyancy control
• Backfill material
• Tank handling
• Product compatibility
• Installation testing
• Registration and notification

UST Piping Systems

Piping carries regulated substances between the tank and the dispensing or process equipment.

Candidates should review:

• Pressurized piping
• Suction piping
• Rigid and flexible piping
• Secondary containment
• Interstitial monitoring
• Line leak detectors
• Piping tightness testing
• Shear valves
• Containment sumps
• Corrosion protection
• Repairs and replacement

Spill Prevention

Spill prevention equipment helps contain product released during fuel delivery and transfer activities.

Study subjects may include:

• Spill buckets and catchment basins
• Fill-pipe identification
• Delivery procedures
• Pre-delivery tank-volume verification
• Monitoring during delivery
• Drainage or removal of accumulated liquid
• Damage and corrosion
• Periodic testing
• Inspection records
• Response to delivery spills

Operators should know the facility’s delivery procedures and ensure that spill-prevention equipment remains functional and properly maintained.

Overfill Prevention

Overfill prevention equipment helps stop or restrict product delivery before the tank becomes overfilled.

Common devices may include:

• Automatic shutoff devices
• Overfill alarms
• Ball-float valves where permitted
• Electronic monitoring systems
• Other approved overfill-prevention equipment

Candidates should review device operation, inspection requirements, testing intervals, compatibility, and actions required when equipment fails.

Release Detection

Release detection is one of the most important UST compliance areas. Operators must understand the method used at each facility and recognize whether the monitoring results are complete and valid.

Release-detection methods may include:

• Automatic tank gauging
• Statistical inventory reconciliation
• Interstitial monitoring
• Groundwater monitoring
• Vapor monitoring
• Tank tightness testing
• Inventory control
• Manual tank gauging where permitted
• Continuous in-tank leak detection
• Line leak detection
• Piping tightness testing

Automatic Tank Gauging

Automatic tank gauges may monitor product level, water level, inventory, alarms, and leak-test results.

Candidates should understand:

• How tank-gauge probes operate
• How leak tests are initiated
• Required test conditions
• Passing, failing, and inconclusive results
• Water-level alarms
• Delivery and theft alarms
• Sensor alarms
• Required records
• Actions following unusual results

An operator should not assume that equipment is functioning properly simply because it is powered on.

Interstitial Monitoring

Interstitial monitoring detects regulated substances or liquid in the space between the primary and secondary containment barriers.

Monitoring locations may include:

• Double-walled tanks
• Double-walled piping
• Tank-top sumps
• Transition sumps
• Under-dispenser containment
• Other containment areas

Candidates should review sensor placement, alarm response, containment integrity, liquid removal, testing, inspection, and documentation.

Pressurized Piping Release Detection

Pressurized piping may require automatic line leak detection together with another permitted monitoring or testing method.

Candidates should study:

• Mechanical line leak detectors
• Electronic line leak detectors
• Automatic shutdown
• Flow restriction
• Alarm activation
• Annual line testing
• Monthly monitoring
• Secondary containment
• Testing and maintenance records

Corrosion Protection

Metal UST components that contact soil or water may require corrosion protection.

Common corrosion-protection methods include:

• Sacrificial-anode cathodic protection
• Impressed-current cathodic protection
• Corrosion-resistant tank materials
• Corrosion-resistant piping
• Electrical isolation
• Internal lining where permitted
• Other approved protection methods

Candidates should understand testing, inspection, recordkeeping, and maintenance requirements for the system installed at the facility.

Cathodic Protection

Cathodic-protection systems protect buried metal components by controlling electrochemical corrosion.

Study subjects may include:

• Sacrificial anodes
• Impressed-current rectifiers
• Required testing
• Rectifier inspections
• Electrical continuity
• Isolation devices
• Qualified testing personnel
• Testing records
• Repairs and retesting

Class B operators should know how to recognize missing records, failed tests, damaged wiring, inactive rectifiers, and other conditions that may affect protection.

Walkthrough Inspections

Periodic walkthrough inspections help identify equipment problems before they result in a release or compliance violation.

Inspection areas may include:

• Spill-prevention equipment
• Release-detection equipment
• Containment sumps
• Dispenser areas
• Fill and monitoring ports
• Overfill-prevention equipment
• Cathodic-protection equipment
• Alarm histories
• Required testing and inspection records
• Evidence of leaks, damage, or unusual conditions

Candidates should learn both the inspection process and the documentation required to demonstrate that inspections were completed.

Motor Fuel Dispensing Equipment

Dispensing equipment connects the underground system to the point where fuel is delivered to vehicles or approved containers.

Important components and conditions may include:

• Dispensers
• Hoses and nozzles
• Breakaway devices
• Shear valves
• Under-dispenser containment
• Visible leaks
• Damaged fittings
• Loose components
• Emergency shutoff equipment
• Impact protection
• Product identification

Testing and Verification

UST equipment may require periodic testing or verification to confirm that it will perform as intended.

Testing subjects may include:

• Spill-bucket testing
• Containment-sump testing
• Overfill-device inspections
• Release-detection equipment testing
• Line leak detector testing
• Tank and piping tightness testing
• Cathodic-protection testing
• Sensor testing
• Alarm verification
• Documentation of test results

Candidates should distinguish a visual inspection from a functional test and know when qualified service providers are required.

Operation and Maintenance

Proper operation and maintenance help prevent releases and keep UST equipment in compliance.

Class B operators should understand procedures involving:

• Routine equipment checks
• Alarm review
• Water removal
• Spill-bucket maintenance
• Sump maintenance
• Sensor positioning
• Damaged equipment
• Service scheduling
• Repair documentation
• Post-repair testing
• Maintaining access to equipment

Product and Equipment Compatibility

Tank systems must be compatible with the substances stored and the concentrations in which those substances are used.

Compatibility questions may involve:

• Ethanol-blended fuels
• Biodiesel blends
• Alternative fuels
• Tank materials
• Piping materials
• Gaskets and seals
• Adhesives
• Release-detection equipment
• Manufacturer certifications
• Compatibility documentation

Candidates should understand when notice to the implementing agency and compatibility records may be required.

Repairs and Modifications

Repairs must restore the UST system to proper operating condition without compromising release prevention or detection.

Study subjects may include:

• Qualified repair personnel
• Approved repair methods
• Tank and piping repairs
• Spill and overfill equipment repairs
• Containment repairs
• Post-repair tightness testing
• Equipment inspection after repair
• Cathodic-protection restoration
• Required notifications
• Repair records

Suspected Releases

Operators should recognize conditions that may indicate a release and know the required response process.

Possible warning signs include:

• Failed leak-detection results
• Unexplained inventory losses
• Fuel odors
• Product or vapors in nearby structures
• Water in tanks
• Liquid in containment areas
• Unexpected automatic tank-gauge alarms
• Visible product around dispensers
• Unusual pump operation
• Reports of contaminated soil or water

A suspected release should not be ignored or repeatedly dismissed without investigation.

Release Reporting and Confirmation

When a release is suspected or confirmed, owners and operators may need to notify the implementing agency and complete required investigation or corrective-action steps.

Study areas may include:

• Immediate response actions
• Stopping and containing the release
• Fire and explosion hazards
• Required notifications
• Release investigation
• System tightness testing
• Site assessment
• Free-product removal
• Corrective-action planning
• Documentation and follow-up

Reporting deadlines and procedures can vary by implementing agency.

Emergency Response

Class B operators should ensure that facility personnel know how to respond to alarms, spills, overfills, leaks, fires, and other emergencies.

Emergency procedures may include:

• Stopping fuel dispensing
• Activating emergency shutoff equipment
• Controlling ignition sources
• Evacuating unsafe areas
• Containing a spill when safe to do so
• Contacting emergency responders
• Notifying the Class A or Class B operator
• Notifying the implementing agency
• Documenting the incident
• Restoring equipment only after approval

Class C Operator Training

Class B operators may be responsible for ensuring that Class C operators understand the facility’s emergency-response procedures.

Class C training may address:

• Recognizing alarms
• Locating emergency shutoff equipment
• Stopping fuel dispensing
• Responding to spills and overfills
• Contacting emergency services
• Contacting the designated Class A or Class B operator
• Protecting customers and employees
• Following the facility’s written response procedures

Training should be documented according to the rules of the implementing agency.

Reporting and Recordkeeping

Complete and accessible records are essential for demonstrating UST compliance.

Records may include:

• Tank registration and notification documents
• Operator-training certificates
• Release-detection results
• Walkthrough inspection forms
• Spill-prevention equipment tests
• Overfill-device inspections
• Containment-sump tests
• Release-detection equipment tests
• Cathodic-protection results
• Repair and maintenance records
• Compatibility documentation
• Financial responsibility documents
• Closure and site-assessment records

Candidates should study both the type of record required and how long it must be retained.

Financial Responsibility

UST financial responsibility requirements help ensure that funds are available for corrective action and third-party claims resulting from releases.

Study subjects may include:

• Required coverage amounts
• Eligible financial assurance mechanisms
• Insurance policies
• Guarantees
• Surety bonds
• Letters of credit
• Trust funds
• State assurance funds
• Local government mechanisms
• Required documentation
• Record availability

The Class A operator may have broader responsibility for financial assurance, but Class B candidates should understand its role in UST compliance.

Temporary Closure

UST systems in temporary closure remain subject to important operating and compliance requirements.

Candidates should review:

• Release detection during closure
• Corrosion protection
• Vent-line operation
• Capping and securing other lines
• Operator-training requirements
• Required inspections
• Records and notifications
• Conditions requiring additional action
• Returning the system to service

Permanent Closure and Change in Service

Permanent closure or a change in service must be completed in a way that protects people and the environment.

Study subjects may include:

• Advance notification
• Emptying and cleaning tanks
• Removing regulated substances and sludge
• Tank removal
• Closing tanks in place
• Site assessment
• Release reporting
• Disposal requirements
• Closure records
• Corrective action when contamination is discovered

Environmental and Regulatory Consequences

UST releases can contaminate soil, groundwater, surface water, buildings, and utility systems.

Potential consequences may include:

• Cleanup and corrective-action costs
• Property damage
• Third-party claims
• Business interruption
• Fire and explosion hazards
• Drinking-water impacts
• Regulatory penalties
• Required retraining
• Loss of operating authorization
• Long-term monitoring obligations

Understanding these consequences helps explain why routine operation, testing, maintenance, and recordkeeping are important parts of the Class B role.

Open-Book Reference Navigation

An open-book examination still requires careful preparation. The BU package includes several EPA and PEI publications, and candidates may not have enough time to search every reference from the beginning.

A practical lookup method includes:

• Read the complete question
• Identify whether it asks about a regulation, operating practice, test, inspection, or financial requirement
• Select the most likely EPA or PEI reference
• Use the contents, index, headings, or tables
• Read the complete requirement
• Review exceptions, notes, and definitions
• Confirm that the provision applies to the equipment described
• Move on when a question is taking too much time

Choosing the Correct BU Reference

• Federal technical requirement: Begin with 40 C.F.R. Part 280.
• General operation and maintenance: Use the EPA operating and maintenance guidance.
• Basic UST compliance concepts: Review Straight Talk on Tanks and Musts for USTs.
• Financial responsibility: Use Dollars and Sense.
• Operator classes and training: Use the Energy Policy Act operator-training guidance.
• Spill, overfill, release-detection, and containment testing: Use PEI/RP1200.
• Fuel-dispensing equipment inspection: Use PEI/RP500.
• UST system inspection and maintenance: Use PEI/RP900.

Organizing the BU References

A practical tab or indexing system may include:

• Definitions
• Tank requirements
• Piping requirements
• Spill prevention
• Overfill prevention
• Release detection
• Secondary containment
• Corrosion protection
• Walkthrough inspections
• Equipment testing
• Repairs
• Suspected releases
• Corrective action
• Financial responsibility
• Closure
• Operator training
• Recordkeeping

Candidates should verify ICC’s current rules before adding tabs, highlighting, handwritten notes, or inserted material.

Recommended BU Study Plan

• Confirm that the implementing agency accepts the ICC BU examination
• Verify the current exam references and testing rules
• Learn the role of each EPA and PEI publication
• Review Class A, Class B, and Class C responsibilities
• Study tanks, piping, containment, and dispensing equipment
• Review spill and overfill prevention
• Study all major release-detection methods
• Review corrosion-protection systems
• Study walkthrough inspections and required testing
• Review repairs, compatibility, and maintenance
• Study suspected-release and emergency procedures
• Review reporting and recordkeeping requirements
• Study financial responsibility and closure
• Practice selecting the correct reference quickly
• Complete timed lookup exercises

Common BU Exam Preparation Mistakes

• Studying only one EPA publication
• Ignoring the PEI recommended practices
• Memorizing terms without understanding the equipment
• Confusing Class A and Class B responsibilities
• Failing to study record-retention requirements
• Overlooking state-specific operator rules
• Assuming every alarm confirms a release
• Assuming an inconclusive test is a passing result
• Ignoring repair and post-repair testing requirements
• Waiting until exam day to navigate the references

FAQ

Q. What is the ICC Class B UST System Operator - BU exam?

A. It is ICC’s national examination for candidates demonstrating knowledge of day-to-day underground storage tank operation, maintenance, monitoring, inspection, testing, recordkeeping, and compliance responsibilities.

Q. How much does the BU Exam Book Package cost?

A. The sale price is $2,245.00, reduced from the regular price of $2,345.00.

Q. How many questions are on the BU examination?

A. The official ICC listing currently identifies 60 questions.

Q. How much time is allowed for the BU exam?

A. The official ICC listing currently provides one hour and 30 minutes.

Q. Is the BU examination open book?

A. The current product information describes the BU examination as open book. Candidates should verify the permitted references and book rules before testing.

Q. What references are included in the package?

A. The package includes federal UST regulations, EPA operating and compliance publications, EPA operator-training guidance, and PEI recommended practices for testing, dispensing-equipment inspection, and UST system maintenance.

Q. What does a Class B UST operator do?

A. A Class B operator generally implements day-to-day UST operation, maintenance, testing, inspection, release-detection, reporting, recordkeeping, and emergency-response requirements.

Q. What is the difference between Class A and Class B operators?

A. Class A operators generally manage overall regulatory compliance and resources, while Class B operators generally implement the daily technical and operational requirements.

Q. What is a Class C operator?

A. A Class C operator is generally a facility employee trained to provide the initial response to alarms, spills, releases, and other UST emergencies.

Q. Should I study spill and overfill prevention?

A. Yes. Candidates should understand spill buckets, delivery procedures, automatic shutoff devices, alarms, inspections, testing, and maintenance.

Q. Should I study release-detection methods?

A. Yes. Release detection is a major Class B responsibility and may include tank gauging, interstitial monitoring, line leak detection, tightness testing, and other permitted methods.

Q. Should I study corrosion protection?

A. Yes. Candidates should review cathodic protection, testing, rectifier inspections, corrosion-resistant systems, repairs, and recordkeeping.

Q. Should I study reporting and recordkeeping?

A. Yes. Candidates should understand the records required for monitoring, inspections, testing, repairs, training, compatibility, financial responsibility, and closure.

Q. Does passing the national BU exam qualify me in every state?

A. Not necessarily. Each implementing agency determines which exams or training programs it accepts and whether additional state-specific requirements apply.

Q. Can one person serve as both Class A and Class B operator?

A. An implementing agency may allow one individual to hold more than one operator designation when that person completes all required training for each class.

Q. Where can I purchase the BU Exam Book Package?

A. The package is available in the ICC Class B UST System Operator - BU collection.

Conclusion

The ICC Class B UST System Operator - BU examination requires candidates to understand both federal UST requirements and the practical operation of tank, piping, monitoring, containment, corrosion-protection, and dispensing systems.

Important preparation subjects include spill and overfill prevention, release detection, corrosion protection, inspections, testing, equipment maintenance, recordkeeping, repairs, suspected releases, emergency response, financial responsibility, closure, and Class C operator training.

The BU Exam Book Package brings together the listed EPA and PEI materials needed to review these subjects and practice efficient open-book navigation.

Shop the ICC Class B UST System Operator - BU Exam Book Package

Key Takeaways

• BU is ICC’s national Class B UST System Operator examination.
• The BU Exam Book Package sale price is $2,245.00.
• The regular package price is $2,345.00.
• The official ICC listing identifies 60 questions.
• The current exam duration is one hour and 30 minutes.
• The current product information describes the exam as open book.
• The package includes EPA regulations, EPA guidance, and PEI recommended practices.
• Class B operators generally implement day-to-day UST compliance requirements.
• Major subjects include release prevention, release detection, corrosion protection, testing, inspections, and recordkeeping.
• State-specific acceptance, training, and retraining rules may apply.
• Passing the BU exam does not automatically authorize a candidate to serve as a Class B operator in every jurisdiction.
• Candidates should verify current ICC and implementing-agency requirements before registering.