{"product_id":"washington-dc-master-plumber-book-package","title":"Washington DC Master Plumber Book Package","description":"\u003ch1 style=\"color: #d32f2f;\"\u003eWashington DC Master Plumber Book Package\u003c\/h1\u003e\n\n\u003cp\u003ePrepare for the \u003cstrong\u003eWashington DC Master Plumber examination\u003c\/strong\u003e with a focused book package built around the official reference identified for the current District of Columbia exam. This package includes the \u003cstrong\u003e2012 International Plumbing Code\u003c\/strong\u003e, giving candidates the primary code book used for the Master Plumber examination.\u003c\/p\u003e\n\n\u003cp\u003eThe Washington DC Master Plumber examination is administered through \u003cstrong\u003ePSI\u003c\/strong\u003e for the District of Columbia Board of Industrial Trades. The current examination is based on the \u003cstrong\u003e2012 International Plumbing Code\u003c\/strong\u003e and tests plumbing knowledge across fixtures and terminology, plumbing fundamentals, traps and cleanouts, drainage, venting, water distribution, special requirements, and plan analysis.\u003c\/p\u003e\n\n\u003cp\u003eThe Master Plumber examination is different from the Washington DC Master Plumber with Gas examination. The standard Master Plumber exam uses the 2012 International Plumbing Code as its approved reference and does not include the separate gas-content section found on the Master Plumber with Gas examination.\u003c\/p\u003e\n\n\u003cp\u003eThe \u003cstrong\u003e2012 International Plumbing Code\u003c\/strong\u003e covers essential requirements for plumbing-system design and installation, including fixtures, sanitary drainage, storm drainage, vents, water distribution, traps, interceptors, piping materials, sizing, and other requirements important to Master Plumber exam preparation.\u003c\/p\u003e\n\n\u003cp\u003eBecause the Washington DC Master Plumber test is open book, candidates should develop strong reference-navigation skills before test day. Knowing how the International Plumbing Code is organized can help candidates move efficiently between chapters, tables, definitions, sizing requirements, and installation provisions during the timed examination.\u003c\/p\u003e\n\n\u003ch2 style=\"color: #d32f2f;\"\u003eExam Details\u003c\/h2\u003e\n\n\u003cp\u003eThe current \u003cstrong\u003eWashington DC Master Plumber examination\u003c\/strong\u003e is identified by PSI as examination \u003cstrong\u003e303 Washington DC Master Plumber\u003c\/strong\u003e.\u003c\/p\u003e\n\n\u003cp\u003eThe examination contains \u003cstrong\u003e100 multiple-choice questions\u003c\/strong\u003e and provides candidates with a \u003cstrong\u003e4-hour time limit\u003c\/strong\u003e.\u003c\/p\u003e\n\n\u003cp\u003eThe current examination content outline is:\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003e\u003cstrong\u003ePlumbing Fixtures and Terminology – 7%\u003c\/strong\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003cstrong\u003ePlumbing Fundamentals – 13%\u003c\/strong\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003cstrong\u003eTraps, Cleanouts, and Interceptors – 7%\u003c\/strong\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003cstrong\u003eSpecial Requirements – 3%\u003c\/strong\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003cstrong\u003eDrainage Requirements – 19%\u003c\/strong\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003cstrong\u003eVent Requirements – 17%\u003c\/strong\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003cstrong\u003eWater Distribution – 11%\u003c\/strong\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003cstrong\u003ePlan and Analysis – 23%\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003ePlan and Analysis\u003c\/strong\u003e is the largest portion of the examination at 23%. Drainage Requirements account for 19%, while Vent Requirements represent another 17%. Together, those three categories make up 59% of the published examination outline.\u003c\/p\u003e\n\n\u003cp\u003ePlumbing Fundamentals account for 13%, and Water Distribution represents 11%. Candidates should therefore prepare for both code-navigation questions and plumbing calculations involving sizing, fixture units, drainage systems, water supply, venting, and plan interpretation.\u003c\/p\u003e\n\n\u003cp\u003eThe four-hour testing period provides an average of approximately \u003cstrong\u003e2.4 minutes per question\u003c\/strong\u003e. Candidates who are comfortable navigating the 2012 International Plumbing Code can use more of that time to analyze plans, perform calculations, and work through multi-step plumbing questions.\u003c\/p\u003e\n\n\u003ch2 style=\"color: #d32f2f;\"\u003eOpen Book Test\u003c\/h2\u003e\n\n\u003cp\u003eThe Washington DC Master Plumber examination is an \u003cstrong\u003eopen book test\u003c\/strong\u003e.\u003c\/p\u003e\n\n\u003cp\u003ePSI currently identifies the \u003cstrong\u003e2012 International Plumbing Code\u003c\/strong\u003e as the approved reference for the Washington DC Master Plumber examination. Candidates preparing specifically for this examination should study from the 2012 edition because code-based questions are tied to the edition listed in the current examination reference information.\u003c\/p\u003e\n\n\u003cp\u003eAn open-book exam still requires a strong working knowledge of the code. Candidates should know where to locate definitions, general regulations, plumbing fixtures, water-supply provisions, sanitary drainage requirements, venting rules, traps, interceptors, storm drainage provisions, and referenced tables.\u003c\/p\u003e\n\n\u003cp\u003eRather than trying to look up every question from the beginning, candidates should practice recognizing which chapter or subject area is likely to contain the answer. For example, a drainage-sizing question should immediately direct attention toward the drainage provisions and applicable tables, while a vent-sizing or vent-location problem should direct the candidate toward the venting chapter.\u003c\/p\u003e\n\n\u003cp\u003eReference materials are subject to PSI examination-center rules and inspection. Candidates should prepare their book before test day in accordance with current testing requirements and become comfortable navigating it under timed conditions.\u003c\/p\u003e\n\n\u003ch2 style=\"color: #d32f2f;\"\u003eLicensing Steps\u003c\/h2\u003e\n\n\u003cp\u003eThe \u003cstrong\u003eDistrict of Columbia Board of Industrial Trades\u003c\/strong\u003e regulates plumbers and gasfitters in Washington DC. Candidates pursuing Master Plumber licensure through examination must satisfy the applicable experience and documentation requirements before completing the licensing process.\u003c\/p\u003e\n\n\u003col\u003e\n  \u003cli\u003e\n\u003cstrong\u003eConfirm the Master Plumber license category.\u003c\/strong\u003e Washington DC offers plumbing, gasfitting, and combined plumbing\/gasfitting credentials. Candidates seeking the standard Master Plumber credential should prepare for the Master Plumber examination rather than the Master Plumber with Gas examination.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eComplete the required qualifying experience.\u003c\/strong\u003e The current examination pathway for a Master Plumber requires substantial documented plumbing experience.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eGather employment documentation.\u003c\/strong\u003e Applicants using the examination pathway must provide tax records and employment verification letters documenting qualifying work experience.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHave employment verification completed appropriately.\u003c\/strong\u003e The District instructs applicants to submit employment verification signed by the master supervising the qualifying experience. The documentation should describe the length of employment and the plumbing experience performed.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePrepare the general application materials.\u003c\/strong\u003e Current Board application requirements include a passport-style photograph, government-issued identification, and payment information for applicable licensing charges.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSubmit the Washington DC licensing application.\u003c\/strong\u003e Complete the applicable plumbing license application through the District's occupational and professional licensing system.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eComplete the examination process.\u003c\/strong\u003e Washington DC trade examinations are administered through PSI.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePrepare with the approved code book.\u003c\/strong\u003e Study the 2012 International Plumbing Code according to the official Master Plumber examination outline.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTake the Master Plumber examination.\u003c\/strong\u003e The current exam contains 100 multiple-choice questions and allows four hours.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eComplete the remaining licensing requirements.\u003c\/strong\u003e Follow the Board of Industrial Trades instructions for completing the Master Plumber licensing process after satisfying the examination and documentation requirements.\u003c\/li\u003e\n\u003c\/ol\u003e\n\n\u003ch2 style=\"color: #d32f2f;\"\u003eState Requirements\u003c\/h2\u003e\n\n\u003cp\u003eWashington DC is a federal district rather than a state, but plumbing licenses are regulated locally through the \u003cstrong\u003eDistrict of Columbia Board of Industrial Trades\u003c\/strong\u003e.\u003c\/p\u003e\n\n\u003cp\u003eFor the \u003cstrong\u003eMaster Plumber examination pathway\u003c\/strong\u003e, current District application instructions identify an experience requirement of \u003cstrong\u003e8 years, or 16,000 hours, of qualifying work experience\u003c\/strong\u003e.\u003c\/p\u003e\n\n\u003cp\u003eCandidates pursuing the license through examination must provide supporting documentation that includes \u003cstrong\u003etax records and an employment verification letter\u003c\/strong\u003e. The employment verification letter should be signed by the master and detail the length and nature of the qualifying plumbing experience.\u003c\/p\u003e\n\n\u003cp\u003eThe District's current application information also identifies a certificate of completion and employment verification among the documentation used for plumbing and gasfitting applications, depending on the licensing pathway.\u003c\/p\u003e\n\n\u003cp\u003eWashington DC licenses plumbing and gasfitting separately as well as through combined license categories. Candidates should select the examination that corresponds to the credential they intend to obtain. The \u003cstrong\u003eMaster Plumber\u003c\/strong\u003e exam is different from the \u003cstrong\u003eMaster Plumber with Gas\u003c\/strong\u003e exam. The latter includes gas questions and uses both the International Plumbing Code and International Fuel Gas Code.\u003c\/p\u003e\n\n\u003cp\u003ePlumbing and gasfitting licenses in the District currently expire on \u003cstrong\u003eMarch 31 of even-numbered years\u003c\/strong\u003e. Renewal is handled separately from the initial examination and licensing process.\u003c\/p\u003e\n\n\u003cp\u003eA Master Plumber license should also be distinguished from a \u003cstrong\u003ePlumbing Contractor license\u003c\/strong\u003e. The individual master credential and the contracting business credential serve different purposes. Washington DC trade contractors must meet separate business and contractor requirements.\u003c\/p\u003e\n\n\u003cp\u003eCurrent District contractor requirements include proof of business registration or a certificate of good standing, a designated DC-licensed master tradesperson, and the applicable plumbing and gasfitting contractor bond.\u003c\/p\u003e\n\n\u003cp\u003eCandidates who intend to use their Master Plumber credential as part of a contracting business should therefore plan for both the individual trade-license requirements and the separate business licensing requirements that apply to the company.\u003c\/p\u003e\n\n\u003ch2 style=\"color: #d32f2f;\"\u003eReference Books\u003c\/h2\u003e\n\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003e2012 International Plumbing Code\u003c\/strong\u003e\u003cbr\u003e\u003cspan\u003eThe official reference identified for the current Washington DC Master Plumber examination. The 2012 International Plumbing Code covers plumbing fixtures, definitions, general regulations, water supply and distribution, sanitary drainage, indirect and special waste, vents, traps, interceptors, separators, storm drainage, piping materials, system sizing, and other plumbing-system requirements relevant to Master Plumber exam preparation.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2 style=\"color: #d32f2f;\"\u003eExam Room Approved Books\u003c\/h2\u003e\n\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003e2012 International Plumbing Code\u003c\/strong\u003e\u003cbr\u003e\u003cspan\u003eThe 2012 International Plumbing Code is listed by PSI as the approved reference for the current Washington DC Master Plumber examination.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eThe standard Washington DC Master Plumber examination does not list the International Fuel Gas Code as an approved reference. Candidates seeking the combined \u003cstrong\u003eMaster Plumber with Gas\u003c\/strong\u003e credential take a different examination that includes gas content and an additional fuel-gas reference.\u003c\/p\u003e\n\n\u003ch2 style=\"color: #d32f2f;\"\u003eTest Information and Study Materials\u003c\/h2\u003e\n\n\u003cp\u003e\u003cstrong\u003ePlumbing Fixtures and Terminology\u003c\/strong\u003e account for 7% of the exam. Candidates should understand plumbing terminology, fixture classifications, fixture requirements, installation clearances, fixture connections, and the code provisions governing common plumbing fixtures.\u003c\/p\u003e\n\n\u003cp\u003eDefinitions are important because a code question may depend on the precise meaning of a term. Candidates should become familiar with terminology used throughout the International Plumbing Code instead of relying only on everyday trade usage.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003ePlumbing Fundamentals\u003c\/strong\u003e represent 13%. This section can involve general plumbing principles, system operation, code fundamentals, materials, calculations, and the relationship between different components of a plumbing system.\u003c\/p\u003e\n\n\u003cp\u003eCandidates should understand how water-supply, drainage, venting, fixture, and trap requirements work together. Master-level questions can involve more than one code concept, making it useful to practice problems that require several steps.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eTraps, Cleanouts, and Interceptors\u003c\/strong\u003e account for 7%. Review trap requirements, trap seals, prohibited arrangements, cleanout locations, accessibility, interceptors, separators, and the applications where specialized equipment is required.\u003c\/p\u003e\n\n\u003cp\u003eQuestions may require the candidate to identify when a cleanout is required, how it must be located, whether an interceptor is necessary, or what type of trap arrangement complies with the code.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eSpecial Requirements\u003c\/strong\u003e represent 3% of the examination. Although this is the smallest category, candidates should still review specialized plumbing provisions because several questions can affect the overall exam result.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eDrainage Requirements\u003c\/strong\u003e account for \u003cstrong\u003e19%\u003c\/strong\u003e, making this one of the largest sections. Study drainage fixture units, pipe sizing, horizontal and vertical drainage piping, building drains, building sewers, changes in direction, slopes, connections, sanitary drainage, and applicable sizing tables.\u003c\/p\u003e\n\n\u003cp\u003eDrainage calculations should receive substantial preparation time. Candidates should practice identifying fixture-unit loads and using the appropriate IPC tables to size drainage piping.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eVent Requirements\u003c\/strong\u003e account for \u003cstrong\u003e17%\u003c\/strong\u003e. Review individual vents, common vents, wet venting, circuit venting, vent sizing, vent connections, vent terminals, and the relationship between traps, drainage piping, and vent systems.\u003c\/p\u003e\n\n\u003cp\u003eVent questions can require careful reading because the correct answer may depend on pipe size, distance, fixture arrangement, drainage configuration, or the type of venting method being used.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eWater Distribution\u003c\/strong\u003e represents 11%. Candidates should study water-service piping, distribution systems, fixture supply requirements, pipe sizing, pressure, backflow protection, valves, water heaters, and other components associated with potable-water delivery.\u003c\/p\u003e\n\n\u003cp\u003eMaster Plumber candidates should practice both code lookups and water-distribution calculations. Being able to move efficiently between tables and related code text can save significant examination time.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003ePlan and Analysis\u003c\/strong\u003e represents \u003cstrong\u003e23%\u003c\/strong\u003e, making it the largest section of the examination. Candidates should be comfortable interpreting plumbing plans, identifying system components, understanding piping layouts, evaluating fixture connections, and analyzing plumbing-system design.\u003c\/p\u003e\n\n\u003cp\u003ePlan-analysis questions can combine several code areas. A plan may require the candidate to calculate fixture units, size drainage piping, determine venting requirements, evaluate water distribution, or identify a code-compliance problem.\u003c\/p\u003e\n\n\u003cp\u003eA useful study strategy is to practice reading a plumbing layout and then tracing each system independently. First evaluate the sanitary drainage system, then venting, then water distribution, then fixtures and special equipment. This makes complex plans easier to analyze systematically.\u003c\/p\u003e\n\n\u003cp\u003eThe examination provides \u003cstrong\u003efour hours for 100 questions\u003c\/strong\u003e. Candidates should practice pacing themselves so that detailed plan-analysis questions do not consume too much time early in the test.\u003c\/p\u003e\n\n\u003cp\u003eRepeated use of the \u003cstrong\u003e2012 International Plumbing Code\u003c\/strong\u003e is one of the most important parts of preparation. Candidates should learn where major chapters begin, which tables are frequently used, and how related provisions are cross-referenced throughout the code.\u003c\/p\u003e\n\n\u003cp\u003eWhen a practice question is answered incorrectly, identify the reason. Common problems include choosing the wrong table, overlooking an exception, using the wrong fixture-unit value, confusing drainage and vent sizing, misreading a plan, or missing a special requirement.\u003c\/p\u003e\n\n\u003cp\u003eAs preparation progresses, candidates should work toward solving straightforward questions from knowledge while reserving the code book for confirmation, tables, calculations, and less familiar requirements. This approach can make open-book testing more efficient.\u003c\/p\u003e\n\n\u003ch2 style=\"color: #d32f2f;\"\u003eHow 1 Exam Prep Helps You Reach Your Goal\u003c\/h2\u003e\n\n\u003cp\u003e1 Exam Prep supports Washington DC Master Plumber candidates through organized study guidance, plumbing-focused review, practice-oriented preparation, code calculations, plan-analysis practice, and reference navigation.\u003c\/p\u003e\n\n\u003cp\u003eThe \u003cstrong\u003e2012 International Plumbing Code\u003c\/strong\u003e gives candidates the exact reference identified for the current Washington DC Master Plumber exam. Preparing directly from the tested code edition helps candidates become familiar with the chapters, tables, terminology, and requirements they will use during the open-book examination.\u003c\/p\u003e\n\n\u003cp\u003eA structured preparation approach can help candidates prioritize study according to the official exam weighting. Plan and Analysis, Drainage Requirements, and Vent Requirements should receive substantial attention because they make up the majority of the published examination outline.\u003c\/p\u003e\n\n\u003cp\u003eWater Distribution, Plumbing Fundamentals, Fixtures and Terminology, Traps and Cleanouts, and Special Requirements should also be included in a complete study schedule. These topics connect closely with the larger drainage, venting, and plan-analysis sections.\u003c\/p\u003e\n\n\u003cp\u003ePractice-oriented preparation helps candidates develop the ability to identify what a question is testing, locate the appropriate IPC provision, use the correct table, perform the required calculation, and manage time effectively.\u003c\/p\u003e\n\n\u003cp\u003e1 Exam Prep focuses on helping candidates build stronger plumbing-code knowledge, improve calculation and plan-analysis skills, develop more efficient book-navigation habits, and create an organized study structure without guaranteeing a particular examination score or licensing outcome.\u003c\/p\u003e\n\n\u003ch2 style=\"color: #d32f2f;\"\u003eHow many questions are on the Washington DC Master Plumber exam?\u003c\/h2\u003e\n\n\u003cp\u003eThe current examination contains \u003cstrong\u003e100 multiple-choice questions\u003c\/strong\u003e.\u003c\/p\u003e\n\n\u003ch2 style=\"color: #d32f2f;\"\u003eHow much time is allowed for the exam?\u003c\/h2\u003e\n\n\u003cp\u003eCandidates receive a \u003cstrong\u003e4-hour time limit\u003c\/strong\u003e.\u003c\/p\u003e\n\n\u003ch2 style=\"color: #d32f2f;\"\u003eIs the Washington DC Master Plumber exam open book?\u003c\/h2\u003e\n\n\u003cp\u003eYes. The current examination is an \u003cstrong\u003eopen book test\u003c\/strong\u003e.\u003c\/p\u003e\n\n\u003ch2 style=\"color: #d32f2f;\"\u003eWhich code book is used for the Washington DC Master Plumber exam?\u003c\/h2\u003e\n\n\u003cp\u003ePSI currently identifies the \u003cstrong\u003e2012 International Plumbing Code\u003c\/strong\u003e as the approved reference for the Washington DC Master Plumber examination.\u003c\/p\u003e\n\n\u003ch2 style=\"color: #d32f2f;\"\u003eDoes the standard Master Plumber exam include gas?\u003c\/h2\u003e\n\n\u003cp\u003eThe standard Master Plumber examination does not include the separate gas category found on the Washington DC Master Plumber with Gas exam. The combined Master Plumber with Gas examination is a different test and uses an additional fuel-gas reference.\u003c\/p\u003e\n\n\u003ch2 style=\"color: #d32f2f;\"\u003eWhat is the largest section of the Master Plumber exam?\u003c\/h2\u003e\n\n\u003cp\u003e\u003cstrong\u003ePlan and Analysis\u003c\/strong\u003e is the largest content area at \u003cstrong\u003e23%\u003c\/strong\u003e of the current examination outline.\u003c\/p\u003e\n\n\u003ch2 style=\"color: #d32f2f;\"\u003eHow much of the exam covers drainage?\u003c\/h2\u003e\n\n\u003cp\u003e\u003cstrong\u003eDrainage Requirements\u003c\/strong\u003e represent \u003cstrong\u003e19%\u003c\/strong\u003e of the examination.\u003c\/p\u003e\n\n\u003ch2 style=\"color: #d32f2f;\"\u003eHow much of the exam covers venting?\u003c\/h2\u003e\n\n\u003cp\u003e\u003cstrong\u003eVent Requirements\u003c\/strong\u003e account for \u003cstrong\u003e17%\u003c\/strong\u003e of the current exam.\u003c\/p\u003e\n\n\u003ch2 style=\"color: #d32f2f;\"\u003eWhat experience is required for the Master Plumber examination pathway?\u003c\/h2\u003e\n\n\u003cp\u003eCurrent Washington DC application instructions identify \u003cstrong\u003e8 years, or 16,000 hours, of qualifying experience\u003c\/strong\u003e for the Master-level examination pathway.\u003c\/p\u003e\n\n\u003ch2 style=\"color: #d32f2f;\"\u003eWhat documentation is required for the experience pathway?\u003c\/h2\u003e\n\n\u003cp\u003eCurrent District instructions identify \u003cstrong\u003etax records and an employment verification letter\u003c\/strong\u003e for Master applicants using the examination pathway. Employment verification should document the length and nature of the qualifying work.\u003c\/p\u003e\n\n\u003ch2 style=\"color: #d32f2f;\"\u003eWho regulates Washington DC Master Plumbers?\u003c\/h2\u003e\n\n\u003cp\u003eMaster Plumber licensing is administered through the \u003cstrong\u003eDistrict of Columbia Board of Industrial Trades\u003c\/strong\u003e.\u003c\/p\u003e\n\n\u003ch2 style=\"color: #d32f2f;\"\u003eWho administers the Washington DC Master Plumber examination?\u003c\/h2\u003e\n\n\u003cp\u003eThe current trade examination is administered through \u003cstrong\u003ePSI\u003c\/strong\u003e.\u003c\/p\u003e\n\n\u003ch2 style=\"color: #d32f2f;\"\u003eWhen do Washington DC plumbing licenses expire?\u003c\/h2\u003e\n\n\u003cp\u003eWashington DC plumbing and gasfitting licenses currently expire on \u003cstrong\u003eMarch 31 of even-numbered years\u003c\/strong\u003e.\u003c\/p\u003e\n\n\u003ch2 style=\"color: #d32f2f;\"\u003eIs a Master Plumber license the same as a Plumbing Contractor license?\u003c\/h2\u003e\n\n\u003cp\u003eNo. The individual Master Plumber credential and the business contractor credential are separate. Plumbing contractors must satisfy the District's applicable business registration, designated-master, bonding, and contractor requirements.\u003c\/p\u003e\n\n\u003ch2 style=\"color: #d32f2f;\"\u003eWhat should I focus on when preparing?\u003c\/h2\u003e\n\n\u003cp\u003eFocus on plan analysis, drainage, venting, water distribution, plumbing fundamentals, fixtures, traps, cleanouts, interceptors, special requirements, plumbing calculations, and efficient navigation of the 2012 International Plumbing Code.\u003c\/p\u003e\n\n\u003ch2 style=\"color: #d32f2f;\"\u003eWhy choose the Washington DC Master Plumber Book Package?\u003c\/h2\u003e\n\n\u003cp\u003eThis package centers preparation on the \u003cstrong\u003e2012 International Plumbing Code\u003c\/strong\u003e, the official reference identified for the current Washington DC Master Plumber examination. It provides the code foundation needed to study plumbing systems, calculations, drainage, venting, water distribution, fixtures, and plan analysis while building faster open-book reference skills.\u003c\/p\u003e\n\n","brand":"1 Exam Prep","offers":[{"title":"Default Title","offer_id":46530592342073,"sku":null,"price":105.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1789\/0861\/files\/DC-MASTERPLUMBER-BOOKS.jpg?v=1789656299","url":"https:\/\/1examprep.com\/products\/washington-dc-master-plumber-book-package","provider":"1 Exam Prep","version":"1.0","type":"link"}