The US Environmental Protection Agency has eased several rules for gasoline storage facilities and bulk fuel terminals in Texas that were affected by Hurricane Harvey.
The agency late Friday issued "no action assurance" letters waiving the rules through September 22.
EPA said it would not take enforcement action against:
Tanker trucks for certain standards of the Clean Air Act related to tank tightness and registration.
Gasoline storage tank emissions during "roof landings" caused by low supplies at refineries.
Bulk fuel terminals that cannot operate devices to capture or recover certain air pollutants.
"Under EPA's no action assurance letters, the facilities must continue to exercise good air pollution control practices and comply with all other federal, state and local environmental laws," the agency said.