How do you dispose of old gasoline?

What each state's own agency says about gasoline: the page it was read from, the date it was read, and where that state takes it.

The federal baseline

There is no federal disposal rule for the old gas can in your garage — waste from normal household activities sits outside the federal definition of hazardous waste. EPA does say it "considers some leftover household products that can catch fire, react, or explode under certain circumstances, or that are corrosive or toxic as household hazardous waste," and that "improper disposal of HHW can include pouring them down the drain, on the ground, into storm sewers, or in some cases putting them out with the regular trash." EPA's own instruction is to "check with your local environmental, health or solid waste agency for more information on HHW management options in your area." Where your old gasoline may actually go is set by your state and your county.

Read from EPA.

What happens to it

1. Dropped off — in Iowa, for one, a Regional Collection Center is a permanent facility for the proper management and disposal of household hazardous materials.
2. Offered for reuse — many of these centers run a materials exchange (Swap Shop) where people drop off usable materials for others to take at no charge.
3. Consolidated — Iowa’s satellite facilities send what they collect to a main Regional Collection Center under a contractual agreement.
4. Packaged out — main facilities package the materials they receive for recycling or disposal and arrange final collection by a licensed hazardous waste contractor.

Steps read from Iowa DNR.

All 50 states

One row per state, with the sentence its agency page states, the page itself, the date it was read, and where that state says to take it. A state whose name links has a page of its own; for the rest, this row is everything that state says.