Iowa Irrigation System Wiring Contractor Ultimate Exam Prep Rental Package

Prepare for the Iowa Irrigation System Wiring Examination with an Ultimate Exam Prep Rental Package designed around the current Iowa specialty electrical exam and the 2023 National Electrical Code. This package combines highlighted and tabbed rental references, 1 year of course access, and Application Service to provide a structured approach to exam preparation and the Iowa Special Electrician licensing process.

The package includes rental copies of the National Electrical Code Handbook, 2023, Ugly's Electrical References, and Simplified Irrigation Design, 2nd Edition, 1995. All included books are supplied highlighted and tabbed to support organized study, reference navigation, electrical calculations, and irrigation-system knowledge.

The Iowa Irrigation System Wiring credential is issued as an endorsement on the state's Special Electrician license. The examination is administered through PSI for the Iowa Electrical Examining Board. The current examination is based on the 2023 National Electrical Code and covers general knowledge, wiring and protection, wiring methods and materials, equipment for general use, special equipment, and low-voltage systems.

The National Electrical Code Handbook, 2023 is the exam-room-approved reference included in this package. PSI currently permits candidates to use either the 2023 NEC or the 2023 NEC Handbook. Ugly's Electrical References and Simplified Irrigation Design are included as study resources but are not approved for use inside the current examination center.

Please allow up to 15 business days for ultimate book package orders.

The package price is $1,315 plus a refundable deposit of $200, for a total initial payment of $1,515. All included books are rental books and are supplied highlighted and tabbed.

The Ultimate package also includes 1 year of course access and Application Service, giving candidates an extended preparation period and additional support with the Iowa application process associated with this specialty electrical credential.

Exam Details

The current Iowa Irrigation System Wiring Examination contains 50 scored questions. Candidates receive 120 minutes to complete the scored portion and must achieve at least 70% correct to pass.

The examination also includes 5 non-scored questions. PSI provides an additional 15 minutes for these questions. Non-scored items are used for examination development and do not affect the candidate's final score.

The current examination content outline is:

• General Knowledge – 12%
• Wiring and Protection – 20%
• Wiring Methods and Materials – 20%
• Equipment for General Use – 20%
• Special Equipment – 14%
• Low Voltage – 14%

Wiring and Protection, Wiring Methods and Materials, and Equipment for General Use each represent 20% of the exam. Together, those three areas account for 60% of the scored examination and deserve substantial preparation time.

Special Equipment and Low Voltage each represent 14%, while General Knowledge accounts for 12%. Candidates should prepare across all six content areas because irrigation-system wiring can involve outdoor electrical equipment, low-voltage controls, motors, conductors, grounding, protection, wiring methods, and equipment-specific requirements.

Open Book Test

The Iowa Irrigation System Wiring examination is an open book test using approved reference material.

PSI currently permits candidates to use either the NFPA 70 National Electrical Code, 2023 Edition or the NFPA 70 National Electrical Code Handbook, 2023. This Ultimate Exam Prep Rental Package includes the 2023 NEC Handbook.

The approved NEC reference may be prepared with highlighting, underlining, indexing, and permanent tabs before the examination. Candidates should use the highlighted and tabbed NEC Handbook consistently during preparation so frequently used sections become familiar before test day.

Ugly's Electrical References is not approved for use inside the current examination center. It is included as a study resource for formulas, conductor information, voltage drop, grounding, motors, transformers, electrical calculations, and practical field information.

Simplified Irrigation Design, 2nd Edition is also a study-only reference and is not approved for use inside the current examination center. It can help candidates strengthen their understanding of irrigation layout, water distribution, controls, piping, hydraulic principles, and system design concepts.

Open-book testing still requires efficient preparation. Candidates should practice locating applicable NEC requirements before test day instead of relying on broad searches during the timed examination.

Licensing Steps

Iowa electrical licensing is administered by the Iowa Electrical Examining Board within the Department of Inspections, Appeals, and Licensing. Irrigation System Wiring is one of the specialty endorsements available under the Iowa Special Electrician license.

1. Select the Irrigation System Wiring specialty. Applicants seeking this authorization pursue the Irrigation System Wiring endorsement on the Special Electrician license.
2. Choose an eligible qualification pathway. Iowa allows applicants to qualify by passing a written supervised examination approved by the Board or by completing the required documented irrigation-system wiring experience.
3. Submit the applicable Iowa electrical license application. Candidates using the examination pathway complete the application required for the license that requires testing.
4. Request testing sponsorship. Iowa requires Board authorization before the PSI examination may be scheduled.
5. Receive authorization to test. After the sponsorship request is approved, the candidate can proceed with PSI scheduling.
6. Prepare for the 2023 NEC-based exam. Review all six examination categories and practice electrical calculations, low-voltage concepts, wiring methods, equipment requirements, and NEC navigation.
7. Use the highlighted and tabbed rental references throughout preparation. Build familiarity with important NEC articles while using the additional books for calculations and irrigation-system knowledge.
8. Complete the PSI examination. The scored portion contains 50 questions and provides 120 minutes.
9. Earn at least 70%. Candidates using the examination pathway must meet the current passing standard.
10. Complete the remaining licensing process. Follow the Iowa Electrical Examining Board requirements for issuance of the Special Electrician license with the Irrigation System Wiring endorsement.

Application Service is included with this Ultimate package. The service provides assistance with organizing and working through the application process associated with the Iowa Irrigation System Wiring credential.

State Requirements

Iowa recognizes Irrigation System Wiring as a specialty electrical endorsement under the Special Electrician license. The credential applies specifically to irrigation-system wiring and is different from the broader authority associated with a Master Electrician, Journeyman Electrician, Residential Master Electrician, or Residential Electrician license.

Current Iowa requirements allow an applicant to qualify for the Irrigation System Wiring endorsement in one of two ways. An applicant may pass a written supervised examination approved by the Iowa Electrical Examining Board or complete two years, or 4,000 hours, of documented experience in the wiring of irrigation systems.

Candidates using the examination pathway must obtain testing sponsorship from the Iowa Electrical Examining Board before scheduling through PSI. The state sponsorship process requires submission of an application for the license that requires testing.

A passing score of 70% or higher on the approved Iowa PSI examination satisfies the examination component for this Special Electrician endorsement.

Iowa currently uses the 2023 National Electrical Code for statewide electrical requirements. PSI also currently tests Iowa electrical candidates using the 2023 NEC.

Iowa's statewide electrical requirements changed effective June 2, 2026. The state now uses the unamended 2023 NEC as its statewide minimum electrical standard, except for exclusions and provisions specifically established by Iowa law.

Reference Books

• National Electrical Code Handbook, 2023
  Included Book: A highlighted and tabbed rental copy of the primary electrical code reference approved for the current Iowa Irrigation System Wiring examination. The Handbook contains the complete 2023 NEC along with explanatory material supporting study of conductors, branch circuits, grounding and bonding, wiring methods, equipment, motors, controls, low-voltage systems, outdoor installations, and other electrical requirements relevant to irrigation wiring.
• Ugly's Electrical References
  Included Book: A highlighted and tabbed rental study reference covering electrical formulas, Ohm's law, conductor information, voltage drop, grounding, motors, transformers, conversions, calculations, and commonly used electrical data. This book is included for preparation but is not approved for use inside the current PSI examination center.
• Simplified Irrigation Design, 2nd Edition, 1995
  Included Book: A highlighted and tabbed rental study reference covering irrigation-system design concepts, water distribution, system layout, controllers, piping, hydraulics, sprinkler selection, and practical irrigation principles. This reference is included for study but is not approved for use inside the current PSI examination center.

Exam Room Approved Books

• National Electrical Code Handbook, 2023
  The highlighted and tabbed NEC Handbook included with this Ultimate rental package is approved for use during the current Iowa Irrigation System Wiring examination. PSI permits candidates to use either the 2023 NEC or the 2023 NEC Handbook.

Ugly's Electrical References and Simplified Irrigation Design, 2nd Edition are included as study resources and are not approved for use inside the current examination center.

Test Information and Study Materials

General Knowledge represents 12% of the examination. Candidates should review electrical terminology, voltage, current, resistance, power, conductor characteristics, practical electrical theory, and common calculations.

Ugly's Electrical References can support study in this area. Use it to reinforce Ohm's law, voltage drop, conductor data, motor information, electrical conversions, and other formulas before transitioning to exam-style practice without the book.

Wiring and Protection represents 20%. Study branch circuits, conductor sizing, overcurrent protection, grounding and bonding, disconnecting means, equipment protection, and electrical requirements that protect irrigation equipment and users.

Irrigation equipment commonly operates outdoors, underground, or in wet locations. Candidates should understand how environmental conditions affect electrical wiring, equipment, raceways, enclosures, grounding, and protection.

Wiring Methods and Materials also represents 20%. Review conductors, cables, raceways, boxes, fittings, enclosures, underground installations, burial requirements, wet and damp locations, physical protection, and permitted wiring methods.

Practice recognizing when general NEC wiring requirements are supplemented by rules for outdoor equipment, underground installations, motors, controls, or low-voltage systems.

Equipment for General Use accounts for another 20%. Review motors, controllers, switches, disconnecting means, transformers, equipment connections, receptacles, and components commonly associated with irrigation pumping and control systems.

Motor-related questions can involve conductor sizing, overload protection, branch-circuit protection, controllers, disconnects, and grounding. Candidates should understand that these requirements serve different purposes and may use different sizing rules.

Special Equipment represents 14%. Study equipment governed by dedicated NEC articles and practice recognizing when an equipment-specific provision supplements or changes the general electrical rules.

Low Voltage also represents 14% of the examination. Irrigation systems often use low-voltage circuits for controllers, valves, sensors, and related equipment. Candidates should understand how these circuits are installed and how they interact with line-voltage electrical equipment.

Simplified Irrigation Design can help candidates understand the system behind the electrical wiring. Review controllers, irrigation zones, valves, piping, water demand, sprinkler selection, pressure, hydraulic principles, and system layout. Understanding the irrigation system can make electrical questions easier to interpret within a practical context.

The highlighted and tabbed NEC Handbook should remain the primary reference for exam-day practice because it is the exam-room-approved book included in this package. Candidates should repeatedly practice locating grounding, conductor, wiring-method, motor, equipment, and low-voltage provisions.

The scored examination provides 120 minutes for 50 questions, giving candidates an average of approximately 2.4 minutes per scored question. Efficient reference navigation can preserve more time for calculations and multi-step code questions.

When reviewing missed practice questions, determine whether the error came from electrical theory, code navigation, conductor sizing, grounding, equipment requirements, low-voltage wiring, or irrigation-system knowledge. Identifying the reason behind a mistake can make the next study session more focused.

This Ultimate package includes 1 year of course access, providing candidates with an extended preparation period for working through the PSI content outline, strengthening electrical calculations, reviewing irrigation-system concepts, and building faster NEC-navigation skills.

Please allow up to 15 business days for ultimate book package orders.

How 1 Exam Prep Helps You Reach Your Goal

1 Exam Prep supports Iowa Irrigation System Wiring candidates through organized study guidance, electrical trade-focused review, irrigation-system preparation, practice-oriented study, electrical calculations, and open-book NEC navigation.

The highlighted and tabbed National Electrical Code Handbook, 2023 provides an organized electrical code reference candidates can use throughout preparation and during the open-book examination when used according to PSI rules.

The included Ugly's Electrical References supports study of formulas, conductor information, voltage drop, grounding, motors, transformers, conversions, and practical electrical calculations.

Simplified Irrigation Design, 2nd Edition adds irrigation-specific study content covering system layout, hydraulics, controls, piping, water distribution, and other practical design concepts.

This Ultimate package includes 1 year of course access, allowing additional time to study the electrical and irrigation subjects covered by the examination, revisit difficult topics, and strengthen reference-navigation skills.

Application Service is also included, providing support with the application process associated with pursuing the Iowa Irrigation System Wiring Special Electrician endorsement.

1 Exam Prep encourages candidates to organize preparation around General Knowledge, Wiring and Protection, Wiring Methods and Materials, Equipment for General Use, Special Equipment, and Low Voltage. The goal is to strengthen electrical knowledge, improve NEC navigation, reinforce irrigation-system understanding, and create a more organized preparation experience.

How many questions are on the Iowa Irrigation System Wiring exam?

The current examination contains 50 scored questions plus 5 non-scored questions.

How much time is allowed?

Candidates receive 120 minutes for the scored portion and an additional 15 minutes for the non-scored questions.

What score is required to pass?

The current passing requirement is 70%.

Is the Iowa Irrigation System Wiring exam open book?

Yes. The Iowa Irrigation System Wiring examination is an open book test using an approved 2023 NEC reference.

Can the 2023 NEC Handbook be used during the exam?

Yes. PSI currently permits either the 2023 National Electrical Code or the National Electrical Code Handbook, 2023.

Can Ugly's Electrical References be used during the exam?

No. Ugly's Electrical References is not approved for use inside the current PSI examination center. It is included as a highlighted and tabbed rental study resource.

Can Simplified Irrigation Design be used during the exam?

No. Simplified Irrigation Design, 2nd Edition is included for study but is not an approved exam-room reference for the current examination.

Are all of the rental books highlighted and tabbed?

Yes. All three rental books included with this Ultimate package are supplied highlighted and tabbed. Only approved reference material may be used inside the examination center.

How long is the course access?

The Iowa Irrigation System Wiring Contractor Ultimate Exam Prep Rental Package includes 1 year of course access.

Is Application Service included?

Yes. Application Service is included with this Ultimate package.

What is the price of the Iowa Irrigation System Wiring Contractor Ultimate Exam Prep Rental Package?

The package price is $1,315 plus a refundable deposit of $200, for a total initial payment of $1,515.

Is the $200 deposit refundable?

Yes. The $200 portion of the initial payment is identified as a refundable deposit.

Can I qualify through experience instead of taking the examination?

Yes. Iowa currently permits applicants to qualify by passing the approved examination or by completing two years, or 4,000 hours, of documented irrigation-system wiring experience.

Do I need Iowa approval before scheduling the exam?

Yes. Candidates using the examination pathway must obtain testing sponsorship from the Iowa Electrical Examining Board before scheduling the examination through PSI.

Which NEC edition is used on the current examination?

The current Iowa Irrigation System Wiring examination is based on the 2023 National Electrical Code.

What are the largest sections of the exam?

Wiring and Protection, Wiring Methods and Materials, and Equipment for General Use are the largest categories at 20% each.

How long should I allow for the Ultimate package order?

Please allow up to 15 business days for ultimate book package orders.

Why choose the Iowa Irrigation System Wiring Contractor Ultimate Exam Prep Rental Package?

The Ultimate package combines highlighted and tabbed electrical and irrigation rental references, 1 year of course access, and Application Service to provide an organized approach to NEC navigation, electrical calculations, low-voltage wiring, irrigation-system knowledge, and the Iowa licensing process.