Place,Rule,Court or federal action,Status on 2026-11-02,Source
"Berkeley, CA","Ordinance 7,672-N.S. (2019), gas piping ban in new buildings",Ninth Circuit held it preempted by EPCA; amended opinion 2024-01-02,City agreed in a 2024 settlement to stop enforcing and repeal,s4; s34
"Los Angeles, CA","Ordinance 187,714",None (repealed after Berkeley),"Repealed by Ordinance 188,716 (2025-06-24)",s6 (complaint para. 54)
"Encinitas, CA",Electrification mandate,None,Suspended by Ordinance 2023-75 (2023-06-14),s6 (complaint para. 54)
"Santa Cruz, CA",Natural Gas Prohibition Ordinance,None,"Enforcement suspended by Resolution NS-30,156 (2023-06-13)",s6 (complaint para. 54)
"San Luis Obispo, CA",All-electric rule for new buildings,None,Paused (2023-07-18),s6 (complaint para. 54)
"Morgan Hill, CA","Ordinance 2306 (2019), gas infrastructure ban in new buildings",U.S. sued 2026-01-05; dismissed 2026-03-23,Repealed in 2026 before the dismissal,s6; s7; s29
"Petaluma, CA","Ordinance 2775, gas ban in new construction",U.S. sued 2026-01-05; dismissed 2026-03-23,Amended in 2026 to promote rather than require electrification,s6; s7; s29
"New York City, NY",Local Law 154 of 2021 (25 kg CO2 per million Btu combustion limit in new buildings),S.D.N.Y. dismissed EPCA challenge 2025-03-18; Second Circuit affirmed 2026-06-30; rehearing denied 2026-08-26,In effect for its first phase since 2024-01-01,s3; s26; s27
"Montgomery County, MD","Bill 13-22, all-electric new construction",Federal district court upheld 2026-03-25,Takes effect by 2026-12-31,s28
"Morris Township, NJ","Ban on gas, propane and fuel oil in certain new construction",U.S. sued; press release 2026-04-01,Pending; outcome not found,s8
10 Massachusetts municipalities,"Fossil-fuel-free new construction under St. 2022, c. 179, s. 84 (Acton, Aquinnah, Arlington, Brookline, Cambridge, Concord, Lexington, Lincoln, Newton, Northampton)",None found,State-authorized demonstration program,s12