The 1 Package: All-Inclusive Delaware Master HVACR Restricted Gas Piping Contractor Exam, Licensing & Business Setup Solution

Build a clear path from exam preparation to business setup with an all-inclusive package created for professionals pursuing the Delaware Master HVACR Restricted – Gas Piping license. The 1 Package combines the required examination books, a business and law reference, structured course access, application assistance, business formation, EIN filing, and contractor compliance guidance in one complete solution.

This package is designed to support more than test-day preparation. It helps candidates organize the major stages involved in becoming a licensed Delaware restricted gas piping contractor and establishing a properly structured contracting business. Instead of purchasing books separately, preparing an application without guidance, and handling business filings on your own, you receive coordinated support for the examination, licensing process, and initial business setup.

The Delaware Master HVACR Restricted – Gas Piping examination evaluates a candidate’s knowledge of gas piping design, installation, maintenance, repair, alteration, and extension. The exam also addresses gas mains, lines, laterals, tanks, appliances, safety requirements, venting, liquid petroleum gas systems, pipefitting mathematics, and related equipment and appurtenances.

Your included examination books are highlighted and tabbed to support more efficient studying and faster reference navigation. Permanent tabs can help you move between important chapters, code provisions, tables, safety subjects, sizing information, and mathematical concepts. Highlighting draws attention to useful material while allowing you to build familiarity with the organization of each reference before the examination.

The package also includes the Contractors Guide to Business, Law and Project Management – Delaware. This business book supports study of contractor business practices, project administration, legal responsibilities, and management concepts that are important when operating a professional contracting company.

Please allow up to 15 business days for The 1 Package book orders.

Exam Details

The Delaware Master HVACR Restricted – Gas Piping examination tests knowledge directly related to gas piping systems and the safe performance of restricted HVACR gas piping work. The current examination outline identifies 46 questions with a three-hour time allowance.

The examination covers the following subject areas:

• General knowledge
• Isometrics and plan reading
• Sizing and design
• Pipefitting mathematics
• System installation
• LP gas
• Venting
• Safety

System installation is the largest individual category in the published outline. Candidates should be prepared to address the practical application of fuel-gas requirements, including piping materials, connections, installation methods, appliance-related provisions, testing considerations, and system components.

General knowledge questions may evaluate terminology, tools, materials, accepted practices, and foundational gas piping principles. Sizing and design questions may require candidates to interpret tables, recognize system conditions, and select suitable piping sizes based on the information provided.

Pipefitting mathematics can involve measurements, conversions, geometry, offsets, length calculations, and other mathematical procedures used in piping work. Plan-reading and isometric questions may require the candidate to interpret diagrams, symbols, piping layouts, elevations, fittings, and changes in direction.

The LP gas category focuses on concepts related to liquefied petroleum gas systems, while venting questions address the proper removal of combustion products and the application of fuel-gas code provisions. Safety questions may cover workplace hazards, personal protective equipment, jobsite practices, tool safety, material handling, and procedures intended to reduce accidents and property damage.

Delaware uses ProV Exam to administer the required plumbing and HVACR licensure examinations. Candidates must first receive approval from the Delaware Board of Plumbing, Heating, Ventilation, Air Conditioning and Refrigeration Examiners before scheduling the master examination.

Open Book Test

The Delaware Master HVACR Restricted – Gas Piping examination is an open-book test. The approved examination references may be used during testing, but candidates are expected to follow the testing provider’s rules regarding book preparation, tabs, highlighting, notes, inserts, and loose materials.

An open-book exam still requires thorough preparation. The three-hour testing period may appear generous for 46 questions, but many questions require more than simply locating a word in an index. Candidates may need to interpret the question, determine which reference applies, locate a code section or table, evaluate the facts provided, complete a calculation, and select the most accurate answer.

The included books are highlighted and tabbed to support this process. The tabs help identify important areas of the references, while the highlighting draws attention to useful rules, definitions, tables, formulas, and safety information. Candidates should practice with the prepared books throughout the course so that navigating them becomes familiar before exam day.

A strong open-book strategy begins by identifying the subject of the question. For example, a sizing question will usually require a different approach than a safety question. A venting question may direct you toward the fuel gas code, while a mathematical problem may require methods explained in the pipefitting mathematics book.

Practice completing questions under timed conditions. When an answer cannot be found quickly, mark the subject for additional review. The goal is not to memorize every page. The goal is to understand the tested concepts and know how to locate supporting information efficiently.

Licensing Steps

Applicants for the Delaware Master HVACR Restricted – Gas Piping license must complete the state’s application and approval process. Applications are submitted through DELPROS, the Delaware Professional Regulation Online Services system.

1. Select the correct license classification. Choose the Master HVACR Restricted classification and identify Gas Piping as the specialty you intend to pursue.
2. Create or access a DELPROS account. Delaware professional licensing applications and service requests are managed through the online portal.
3. Complete the license application. Enter the requested personal, experience, training, employment, and licensing information.
4. Gather supporting documentation. Required records may include apprenticeship information, journeyman credentials, employment verification, examination records, and license verifications from other jurisdictions.
5. Submit the application and documents. Follow the instructions in DELPROS regarding documents that must be uploaded, acknowledged, mailed, or submitted by a third party.
6. Receive Board approval. The Delaware Board must review and approve an applicant before the applicant may sit for the required master examination.
7. Schedule the examination. After approval, the candidate receives information needed to register with ProV Exam.
8. Take and pass the examination. Delaware requires a minimum passing score of 70 percent for the licensure examination.
9. Complete outstanding licensing requirements. The Board reviews the official examination result and confirms that all applicable licensing requirements have been satisfied before issuing the license.
10. Complete business setup. Establish the business entity, obtain an EIN, address Delaware business registration requirements, and organize the company for professional operation.

The Application Service included with The 1 Package provides structured support through the licensing application process. This service helps candidates organize the required steps and prepare the information associated with the application. Final eligibility decisions and license issuance remain under the authority of the Delaware Board.

State Requirements

The Delaware Master HVACR Restricted license permits a contractor to provide services within a selected specialty. Gas Piping is one of the restricted specialties recognized by the Delaware Board. A restricted gas piping license does not provide the same scope of authority as an unrestricted Master HVACR license.

The Gas Piping examination focuses on the design, installation, maintenance, repair, alteration, and extension of gas piping systems, including gas mains, lines, laterals, tanks, appliances, and related appurtenances. Contractors should perform only the services authorized by the classification issued to them.

Delaware law provides experience and training pathways for Master HVACR and Master HVACR Restricted applicants. One pathway involves completing a qualifying HVACR or restricted HVACR apprenticeship, receiving a journeyman certificate, and obtaining additional supervised experience. Another pathway involves documenting the required years of supervised services and successfully completing an apprenticeship equivalency examination when required by the Board.

Applicants must submit evidence that satisfies the Board’s requirements. Supporting documentation may need to come directly from employers, supervisors, schools, apprenticeship programs, licensing jurisdictions, or other third parties. Candidates should begin gathering records early because official verification can require additional processing time.

The Board must approve the candidate before the master examination can be scheduled. After approval, registration information is forwarded for examination scheduling. Candidates who do not pass after three attempts must reapply and obtain Board approval again. Delaware regulations impose a waiting period before a new application may be submitted following the third unsuccessful attempt.

A Delaware professional license and a Delaware business license are separate requirements. A contractor may need both before operating a business. Business owners may also have obligations involving entity registration, taxation, insurance, local requirements, employees, recordkeeping, and other operational matters.

Reference Books

• Included Book: Basic Safety, 2009
  This reference supports preparation for questions involving workplace safety, hazard recognition, personal protective equipment, hand and power tools, material handling, jobsite conduct, and accident prevention. Safety is a specific category on the Delaware restricted gas piping examination.
• Included Book: International Fuel Gas Code, 2018
  This code reference addresses fuel-gas piping systems, appliance installation, combustion air, venting, sizing, materials, valves, testing, connections, and related requirements. It is a central resource for preparing for code-based gas piping questions.
• Included Book: Mathematics for Plumbers and Pipefitters, 8th Edition
  This book supports the mathematical skills used in piping work, including measurements, fractions, decimals, conversions, geometry, offsets, angles, piping calculations, and practical trade-math applications.
• Included Business Book: Contractors Guide to Business, Law and Project Management – Delaware
  This Delaware-focused business reference supports study of contractor business practices, legal responsibilities, project management, contracts, financial organization, employment matters, and professional business operations.

All included books are highlighted and tabbed. Candidates should use the same prepared references during study sessions and timed practice. Repeated navigation helps build familiarity with chapter organization, indexes, definitions, tables, formulas, diagrams, and code sections.

Test Information and Study Materials

Begin preparation by dividing the examination outline into manageable study areas. A practical schedule may assign separate sessions to general knowledge, gas code navigation, pipe sizing, system installation, LP gas, venting, safety, mathematics, and plan reading.

Use the course lessons to review each topic, and then reinforce the lesson by locating related information in the included books. When studying piping sizing, practice reading the applicable tables and identifying the conditions that affect capacity. When studying venting, compare common venting configurations and learn where the relevant provisions appear in the fuel gas code.

Trade mathematics should be practiced regularly rather than saved for the final days before the examination. Work through problems involving measurements, conversions, areas, angles, offsets, pipe lengths, and other calculations. Review missed problems carefully and determine whether the error came from the formula, the arithmetic, the units, or the interpretation of the question.

Plan-reading preparation should include isometric drawings, piping layouts, symbols, fittings, branches, changes in elevation, and system arrangements. Practice translating a drawing into the sequence of fittings and piping components represented.

Safety preparation should go beyond memorizing vocabulary. Study how safe procedures apply to real jobsite situations involving tools, ladders, lifting, excavation, confined areas, hazardous materials, fire prevention, and personal protective equipment.

Complete timed practice as the examination date approaches. Try to answer the questions you know first, then return to questions requiring longer reference searches or calculations. Read every question carefully and watch for terms such as minimum, maximum, required, permitted, prohibited, most appropriate, and least appropriate.

How 1 Exam Prep Helps You Reach Your Goal

1 Exam Prep brings the major parts of contractor preparation into one organized package. The course provides a structured approach to reviewing trade knowledge, gas piping concepts, safety, mathematics, code navigation, and the subject areas identified in the Delaware examination outline.

The highlighted and tabbed books help students develop a repeatable navigation method. Instead of opening unfamiliar references for the first time shortly before the exam, candidates can study, practice, and complete course activities using the same organized materials throughout their preparation.

Practice-oriented review helps candidates become more comfortable interpreting questions, locating relevant information, completing calculations, and applying gas piping principles. The course structure also helps students identify weak areas and focus additional study where it is needed most.

The Application Service supports the licensing stage by helping candidates organize the application process and understand the sequence of required actions. Business Formation supports the creation of an LLC or corporation, while EIN Filing helps establish the federal tax identification number commonly used for banking, taxation, hiring, and professional business operations.

Contractor Compliance Guidance provides additional direction as the new business moves toward operation. Together, these services create a more complete route from exam preparation through licensing support and business setup without promising a passing score, state approval, or license issuance.

FAQ Section

What is included in The 1 Package?

The package includes four highlighted and tabbed books, 1 year of course access, Application Service, LLC or corporation formation, EIN filing with the IRS, and contractor compliance guidance.

What is the total cost?

The all-inclusive package cost is $2,115. A $200 refundable book deposit brings the total due to $2,315. There are no hidden package fees.

Is the $200 deposit refundable?

Yes. The $200 book deposit is refundable when the books are returned in similar condition within one year.

Are the books highlighted and tabbed?

Yes. All included books are highlighted and tabbed to support organized study and faster reference navigation.

How long should I allow for my book order?

Please allow up to 15 business days for The 1 Package book orders.

How long is the course available?

The package includes 1 year of course access.

Is the Delaware restricted gas piping exam open book?

Yes. The examination is open book and permits the approved references identified for the exam, subject to the testing provider’s material and book-preparation rules.

How many questions are on the exam?

The Delaware Master HVACR Restricted – Gas Piping examination has 46 questions and a three-hour time allowance.

What score is required to pass?

Delaware requires a minimum score of 70 percent to pass the licensure examination.

Does the package include help with the license application?

Yes. Application Service is included to support candidates as they organize and complete the licensing application process.

Does the package establish my business?

The package includes LLC or corporation formation and EIN filing. Additional registrations, insurance, local requirements, professional licensing obligations, and operational requirements may apply to the business.

Does purchasing the package guarantee a license or passing score?

No. The package provides books, course access, preparation resources, application support, and business setup services. Examination results and licensing decisions are controlled by the testing provider and the Delaware Board.