Garden City, Colorado has adopted: 2024 International Building Code (IBC), as adopted by reference with local amendments — UPDATED 2026-07-23: superseded the 2018 edition via Ordinance No. 11-2025; 2024 International Residential Code (IRC), as adopted by reference with local amendments — UPDATED 2026-07-23: superseded the 2018 edition via Ordinance No. 11-2025; 2024 International Mechanical Code (IMC), as adopted by reference with local amendments — UPDATED 2026-07-23: superseded the 2018 edition via Ordinance No. 11-2025; 2024 International Fuel Gas Code (IFGC), as adopted by reference with local amendments — UPDATED 2026-07-23: superseded the 2018 edition via Ordinance No. 11-2025; 2024 International Plumbing Code (IPC), as adopted by reference with local amendments — UPDATED 2026-07-23: superseded the 2018 edition via Ordinance No. 11-2025; 2024 International Energy Conservation Code (IECC) — UPDATED 2026-07-23: Ordinance No. 11-2025 adopts the FULL 2024 IECC by reference (with local amendments to R402.5.1.3 air-leakage testing — 3 ACH50 detached / 5 ACH50 attached — and R403.3.7 duct-leakage testing), superseding the prior 2020-era ordinance's deletion of IRC Chapter 11 in favor of the 2012 IECC. The prior file version's '7 air changes per hour' IRC R303.4 mechanical-ventilation amendment was searched for in the full text of Ordinance 11-2025 and NOT found — it does not appear to carry forward into the current adopted energy code; treated as superseded rather than re-asserted.; 2024 International Property Maintenance Code (IPMC), as adopted by reference with local amendments — UPDATED 2026-07-23: superseded the 2018 edition via Ordinance No. 11-2025; IPMC Section 604.2 still replaces 'NFPA 70' with 'Electrical Code adopted by the State of Colorado' (unchanged from the prior ordinance); 2024 International Existing Building Code (IEBC), as adopted by reference with local amendments — UPDATED 2026-07-23: superseded the 2018 edition via Ordinance No. 11-2025; 2024 International Swimming and Spa Code (ISPSC), adopted by reference — UPDATED 2026-07-23: superseded the 2018 edition via Ordinance No. 11-2025; Colorado Model Electric and Solar Ready Code, 2023 Edition, adopted by reference via Ordinance No. 11-2025 (NEW 2026-07-23 finding) — this appears to be Garden City's HB22-1362-triggering energy-code update (see localAmendments note on HB22-1362 below); Colorado Wildfire Resiliency Code, 2025 Edition, adopted by reference via Ordinance No. 11-2025 (NEW 2026-07-23 finding); National Electrical Code (NEC), 2017 Edition, CORRECTED 2026-07-23: Garden City DOES maintain its own locally-codified Electrical Code — Municipal Code Chapter 18, Article 3, Section 18-3-10 — adopted by reference via Ordinance No. 04-2020 ('AN ORDINANCE ADOPTING BY REFERENCE THE NATIONAL ELECTRIC CODE, 2017 EDITION'), effective October 15, 2020, and re-codified without a base-edition change by Ordinance No. 04-2023 (May 2, 2023). Both ordinances build in an auto-update float: 'The effective edition shall be replaced by subsequent edition(s) of the National Electrical Code adopted by the State of Colorado Electrical Board... and such subsequent editions shall be effective one (1) year after' state adoption. This CORRECTS the prior version of this file, which incorrectly stated Garden City 'has not adopted its own local NEC edition' based solely on the IPMC 604.2 cross-reference to 'Electrical Code adopted by the State of Colorado' — that IPMC phrase does not negate the Town's own codified Chapter 18 Article 3 NEC adoption. What remains true and unchanged: Garden City has NOT established its own local electrical CONTRACTOR licensing board — contractor licensure still runs through the Colorado State Electrical Board (DORA), consistent with the Contemporaneous Review procedure documented elsewhere in this file. Sources: https://www.townofgardencity.com/files/3e62c10e8/ordinance-04-2020-2017-national-electric-code.pdf.pdf and https://www.townofgardencity.com/files/3d5c2fc4d/ordinance-04-2023-ordinance-amending-electrical-code.pdf.pdf; Source: Ordinance No. 11-2025 ('AN ORDINANCE ADOPTING BY REFERENCE THE INTERNATIONAL BUILDING CODE, 2024 EDITION...'), read and introduced November 18, 2025, public hearing December 9, 2025, passed and adopted, signed and approved December 9, 2025, effective 30 days after publication (i.e., on or about early January 2026) — repeals Ordinance No. 02-2020 and any amendments thereto in their entirety. Confirmed live on the Town's own site (https://www.townofgardencity.com/files/18063c2b6/Ordinance+11-2025+International+Building+Code.pdf) as of 2026-07-23, listed on the Town's Ordinances and Resolutions page. This is now the governing code-adoption ordinance; Ordinance No. 02-2020 (2018-edition cycle) is retained in individual permitType `sources` arrays below only as superseded historical reference where still cited. Local-amendment SUBSTANCE (climatic/geographic design table values, sewer/gas-piping depths, gas test pressure, CO-detector distance, foundation/soils-report requirement, R309 residential fire-sprinkler deletion, deck/retaining-wall/shingle permit-exempt thresholds) was diffed against the new ordinance's full text and found IDENTICAL in substance; only code-section numbers shifted with the 2024 ICC renumbering in a few places (documented inline below where it affects a citation). HB22-1362's statewide model energy/low-carbon code requirement now DOES appear to have been triggered and satisfied — see the Colorado Model Electric and Solar Ready Code, 2023 Edition entry above and the dated HB22-1362 note in localAmendments.. Local amendments apply — see the Garden City overview page for the full list.