How many states currently have a IGCC record in this dataset?
6 US jurisdictions have a current record under the IGCC identifier. This count describes the dataset and is not a legal conclusion about every local jurisdiction.
International Green Construction Code (IGCC) State Adoption Reference
Review current International Green Construction Code adoption records across 6 US jurisdictions, with editions, effective dates, amendments, and official references.
The table reports the latest active record per US jurisdiction in MeltPlan's source data. Confirm applicability with the authority having jurisdiction.
Current IGCC records by state
| State | Base model code | Publisher | Effective | Adoption type | Reference |
|---|---|---|---|---|---|
| Arizona | 2024 International Green Construction Code (IGCC) | ICC | Not listed | Standard | Not listed |
| California | 2024 International Green Construction Code (IGCC) | ICC | Jan 1, 2026 | Custom | Official source |
| Colorado | 2021 International Green Construction Code (IGCC) | ICC | Not listed | Standard | Not listed |
| District of Columbia | 2015 International Green Construction Code (IGCC) | ICC | May 29, 2020 | Custom | Official source |
| Maryland | 2021 International Green Construction Code (IGCC) | ICC | May 29, 2023 | Amended | Official source |
| Missouri | 2018 International Green Construction Code (IGCC) | ICC | Not listed | Standard | Not listed |
IGCC adoption questions
Which IGCC editions appear in the current records?
The edition years represented are 2024, 2021, 2018, 2015. A project may be governed by a different edition because of local amendments or transition rules.
Does a IGCC state record apply in every city or county?
Not necessarily. Home-rule authority, local amendments, project type, occupancy, and enforcement dates may change which requirements apply.
How should I verify a IGCC adoption?
Open the official source where one is listed, then confirm the adopted edition, amendments, effective date, and project jurisdiction with the authority having jurisdiction.