Mechanical permit — Tumwater, Washington · Requirements sheet
Verified 2026-09-16 · Source: https://www.codepublishing.com/WA/Tumwater/#!/Tumwater15/Tumwater1508.html
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Mechanical permit in Tumwater, Washington
Permit for heating, ventilation, air conditioning and fuel gas work in Tumwater under the International Mechanical Code adopted at TMC 15.08.010.
Verified 2026-09-16 · Source
When you need this permit
- TMC 15.08.010 adopts “the International Mechanical Code, 2021 Edition, as amended by Chapter 51-52 WAC, which includes adoption of and amendments to the 2021 International Fuel Gas Code, the 2021 National Fuel Gas Code (NFPA 54) and the 2020 Liquefied Petroleum Gas Code (NFPA 58), and including Appendix Chapter A, published by the International Code Council, as the mechanical code of the city; provided, that Sections 106.3.3, 106.4.3, 106.4.4, 106.5, 106.5.1, 106.5.2 and 109 are not adopted.”
- >>> TUMWATER NAMES NFPA 54 AT 2021 AND NFPA 58 AT 2020 IN A SINGLE SENTENCE, WHICH FALSIFIES A MECHANISM THIS PROJECT RECORDED TWO CITIES AGO. TMC 15.08.010 adopts the International Mechanical Code, 2021 Edition, as amended by Chapter 51-52 WAC, “which includes adoption of and amendments to the 2021 International Fuel Gas Code, the 2021 National Fuel Gas Code (NFPA 54) and the 2020 Liquefied Petroleum Gas Code (NFPA 58)”. THE HYPOTHESIS WAS THAT EDITION YEARS SORT BY PUBLISHER — ICC documents on one vintage, NFPA documents on another — because Walla Walla names both NFPA 54 and NFPA 58 at 2020 while its ICC codes are 2021, and Maple Valley shows the same split. IT WAS RECORDED AS A HYPOTHESIS PRECISELY SO IT COULD BE TESTED, AND TUMWATER BREAKS IT: here the two NFPA documents carry DIFFERENT years as each other, in one breath, with NFPA 54 sitting on the same 2021 as the ICC codes. NFPA documents do not move as a block. WHAT SURVIVES IS NARROWER AND IS ABOUT ONE STANDARD, NOT ABOUT PUBLISHERS: NFPA 58 is named at 2020 in five of the six cities in this set that name it at all — Lake Stevens, Issaquah, Walla Walla, Maple Valley and Tumwater — against University Place at 2021. A MAJORITY IS STILL NOT AN ADJUDICATION. NFPA 54 now has two readings of its own: Walla Walla 2020, Tumwater 2021.
- TUMWATER NAMES 2021 THROUGHOUT AND PUTS NO ROLLING CLAUSE ON THE CODES — BUT IT DOES USE ROLLING LANGUAGE ELSEWHERE IN THE SAME TITLE, WHICH IS THE INFORMATIVE PART. Measured: a rolling-phrase search over Chapter 15.04 returns ZERO across all 7,888 characters, while the same pattern fires three times in Chapter 15.01 — so the instrument was demonstrably alive when it reported zero. ALL THREE HITS IN 15.01 ATTACH TO THE FEE SCHEDULE, NOT TO THE CODES: fees are “as currently adopted or as may be amended from time to time by resolution” (one hit is a false positive, “may thereafter be returned”). So within one title the drafter used a rolling formula for the money and withheld it from the codes. >>> TWO READINGS ARE RECORDED AND NEITHER IS ADJUDICATED. On its face this is named-and-static. But each adoption also reads “as amended by Chapter 51-xx WAC”, and that reference can be read as carrying a state chapter that does move. The contrast with the fee schedule is evidence a reader can weigh; it is not proof of intent and is not treated as such here. Maple Valley presents the same combination without the internal contrast.
- THE THIRD EXPIRY TRIGGER IS OBJECTIVE WHERE MOST CITIES' IS A JUDGEMENT CALL. TMC 15.01.060(A): a permit is void “if the building or work authorized by such permit is not commenced within one hundred eighty days from the date of such permit, or if the building or work authorized by such permit is suspended or abandoned at any time or if no required inspections have been approved after the work is commenced for a period of one hundred eighty days.” MOST CITIES IN THIS SET TIME ABANDONMENT; TUMWATER ALSO TIMES APPROVED INSPECTIONS. A job that is genuinely progressing but has not passed an inspection in six months is on the same clock as one that stopped, which is a much easier condition to trip without noticing and a much easier one to check.
- TWO EXTENSIONS, NO MORE, AND ONLY FOR CIRCUMSTANCES OUTSIDE YOUR CONTROL. TMC 15.01.060(B): the building official “may extend the time for action by the permittee for a period not exceeding one hundred eighty days on written request by the permittee showing that circumstances beyond the control of the permittee have prevented action from being taken”, and “No permit shall be extended more than twice.” The extension itself carries a fee under the council's schedule. Compare SeaTac (one extension) and Des Moines (“one or more”, no published limit).
- THE APPLICATION HAS TWO SEPARATE CLOCKS. TMC 15.01.050(A): applications “for which no permit is issued within one hundred eighty days following the date of the application shall expire by limitation unless extended”, and (B) plans and other data for expired applications “may thereafter be returned to the applicant or destroyed by the building official in accordance with state law”. Separately, under (C), applications in review “shall be canceled for inactivity if an applicant fails to substantially respond within ninety days” to the building official's review comments.
- >>> TUMWATER HAS AFFIRMATIVELY OPTED OUT OF THE STATE'S PERMIT-PROCESSING CLOCKS, AND SAYS SO IN ONE SENTENCE. TMC 15.01.045, added by Ord. O2024-005 on 03/12/2024: “As authorized by RCW 36.70B.140, permits issued under this title are exempt from the timeline provisions of RCW 36.70B.060 through 36.70B.090 and 36.70B.110 through 36.70B.130.” THIS IS A PUBLISHED REASON RATHER THAN AN ABSENCE. Most cities in this Washington set simply do not state a review period, and the honest note is “not found where it would be expected”. Here the code tells you the statutory timelines have been disapplied. WHAT EXACTLY IS DISAPPLIED IS NOT ASSERTED — those RCW sections were NOT read for this entry — but the exemption itself is quoted from the code.
- TMC 15.01.100 is headed “Building code appeals – Hearing examiner”. This guide does not summarise it, so no deadline or procedure is stated here. Note that the model codes' own appeal sections — IBC 113 and IRC R112 — are expressly NOT adopted, so this section is the route.
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Fee schedule
TMC 15.01.070: “All fees for permits or other approvals required in this title shall be as currently adopted or as may be amended from time to time by resolution of the Tumwater city council. Show full citationHide
TMC 15.01.070: “All fees for permits or other approvals required in this title shall be as currently adopted or as may be amended from time to time by resolution of the Tumwater city council. Copies of all fee schedules and any subsequent amendments thereto shall be maintained and available for public review at the office of the city clerk during regular business hours or on the city website”. NO DOLLAR AMOUNT APPEARS IN TITLE 15 and the resolution was not opened for this entry. NOTE THE STRUCTURAL REASON THE CODE HAS TO SAY THIS: Tumwater expressly DOES NOT ADOPT the model codes' own fee sections — IBC 109.2 and 109.6, IRC R108.2/.5/.6, IMC 109 and UPC 107.0 are all excluded — so the council resolution is not a supplement to the model schedules, it REPLACES them, and the model tables are not a fallback.TMC 15.01.080 publishes a refund rule, which is uncommon in this set: the building official may refund “One hundred percent of any fee erroneously paid or collected”, “Eighty percent of the permit… Show full citationHide
TMC 15.01.080 publishes a refund rule, which is uncommon in this set: the building official may refund “One hundred percent of any fee erroneously paid or collected”, “Eighty percent of the permit fee paid when no work has been done under a permit issued in accordance with this code; and further provided, that the permit has not expired”, and eighty percent of the plan review fee in the parallel case. THE EXPIRY PROVISO IS THE TRAP — letting a permit lapse forfeits the refund as well as the permit.Review timeline
Inspection process
Tips
- FOUR EDITION YEARS SIT IN ONE SENTENCE AND THEY DO NOT SORT NEATLY: the IMC and the International Fuel Gas Code are 2021, NFPA 54 is 2021, and NFPA 58 is 2020. Do not assume the two NFPA standards share a vintage here — in this city they do not.
- PROPANE IS THE ODD ONE OUT ACROSS WASHINGTON TOO. Five cities in this set name NFPA 58 at 2020 and University Place names 2021, so confirm the operative edition with the building official rather than carrying a year across a city line.
- IMC Section 109, the model code's fee section, is not adopted — mechanical fees come from the council's resolution under TMC 15.01.070.
Frequently asked questions
Sources & verification
Verified against official sources. Last reviewed 2026-09-16.
Codes & ordinances
Fees, timelines, and adopted codes are researched from each jurisdiction's published records — see how we verify. Requirements change and vary by project, so always confirm the current details with the Tumwater building department before you submit. PermitBase is an independent reference and is not affiliated with any government agency.
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