A bill to amend section 112 of the Clean Air Act relating to hazardous air pollutants, and for other purposes.

[AI summary unavailable — showing source text] Amends the Clean Air Act to revise provisions for national emission standards for hazardous air pollutants (NESHAPs). Directs the Administrator of the Environmental Protection Agency (EPA) to determine, after notice and opportunity for public hearing, whether or not each of 37 substances (listed in a specified publication of congressional oversight hearings) is a hazardous air pollutant. Requires that each of the 37 substances be included on the NESHAPs list (of substances for which NESHAPs are to be established), unless the Administrator has determined that any of the 37 substances is not a hazardous air pollutant. Requires that the NESHAPs listing determinations for these 37 substances be made within one year of the enactment of this Act. Directs the Administrator, in the case of substances other than those 37 substances, to make determinations within 180 days after receipt of information which indicates that a substance may be a hazardous air pollutant, after notice and opportunity for public hearing. Permits, but does not require, the Administrator to make a new determination in the case of any substance which the Administrator has previously determined not to be a hazardous ai…