United States Government Publishing Office publisher pbl distributor dst United States National Archives and Records Administration Office of the Federal Register author aut Government Organization text government publication eng FR Regulatory Information 1996_register executive 2010-09-24 article Rules and Regulations D09002ee1be042618 D09002ee1be0426a8 United States Environmental Protection Agency originator org United States Government Agency or Subagency The Environmental Protection Agency (``EPA'' or the ``Agency'') is issuing, as a direct final rule, minor changes to the health-effects testing requirements at 40 CFR Part 79, Subpart F. These requirements deal with the exposure of animals to evaporate and exhaust emissions from motor vehicles. The changes allow for increased flexibility in engine selection, correct an inconsistency with respect to mixing chamber quality assurance, establish clearer exposure timing requirements, provide a necessary option for the units in which emissions data are reported for heavy-duty vehicle engines, clarify oxygen purity requirements, make some minor syntax changes, clarify the handling of the measurements of background chemical species in the ambient air used by the engine generating emissions, clarify the driving schedules, clarify the exposure concentration requirements in the inhalation chamber, clarify dilution system requirements, and clarify the requirements for the collection of particulates and semi- volatiles. These changes will reduce the testing costs without affecting the environmental objectives. This action is being taken without prior notice because EPA believes that the minor changes in the testing requirements will be noncontroversial. The rule implementing the testing requirements was finalized on May 27, 1994 (59 FR 33042, June 27, 1994). The test data will be used by the Agency to determine if the emissions of certain gasolines and/or diesel fuels present an unacceptable risk to public health. For additional background information see the procedure in this issue of the Federal Register proposing changes to the registration regulations. The changes in this direct final rule have also been incorporated into that notice of proposed rulemaking. If an adverse comment or a request for a public hearing is received on this direct final rule, EPA will withdraw the direct final rule and address the comment(s) in a subsequent final rule based on the proposed rule. 61 FR 36506 https://www.govinfo.gov/app/details/FR-1996-07-11/96-17549 96-17549 fr11jy96-7 6560-50-P FRL-5532-4 https://www.govinfo.gov/app/details/FR-1996-07-11/96-17549 https://www.govinfo.gov/content/pkg/FR-1996-07-11/html/96-17549.htm https://www.govinfo.gov/content/pkg/FR-1996-07-11/pdf/96-17549.pdf 8 p. 36506 36513 61 FR 36506 Title 40 Part 79 40 CFR Part 79 Registration of Fuels and Fuel Additives: Minor Changes to the Testing Requirements for Registration; Federal Register Vol. 61, Issue RULE 96-17549 ENVIRONMENTAL PROTECTION AGENCY 1996-08-26 1996-08-12 FRL-5532-4 6560-50-P 96-17549 Direct final rule.

The Environmental Protection Agency (``EPA'' or the ``Agency'') is issuing, as a direct final rule, minor changes to the health-effects testing requirements at 40 CFR Part 79, Subpart F. These requirements deal with the exposure of animals to evaporate and exhaust emissions from motor vehicles. The changes allow for increased flexibility in engine selection, correct an inconsistency with respect to mixing chamber quality assurance, establish clearer exposure timing requirements, provide a necessary option for the units in which emissions data are reported for heavy-duty vehicle engines, clarify oxygen purity requirements, make some minor syntax changes, clarify the handling of the measurements of background chemical species in the ambient air used by the engine generating emissions, clarify the driving schedules, clarify the exposure concentration requirements in the inhalation chamber, clarify dilution system requirements, and clarify the requirements for the collection of particulates and semi- volatiles. These changes will reduce the testing costs without affecting the environmental objectives. This action is being taken without prior notice because EPA believes that the minor changes in the testing requirements will be noncontroversial. The rule implementing the testing requirements was finalized on May 27, 1994 (59 FR 33042, June 27, 1994). The test data will be used by the Agency to determine if the emissions of certain gasolines and/or diesel fuels present an unacceptable risk to public health. For additional background information see the procedure in this issue of the Federal Register proposing changes to the registration regulations. The changes in this direct final rule have also been incorporated into that notice of proposed rulemaking. If an adverse comment or a request for a public hearing is received on this direct final rule, EPA will withdraw the direct final rule and address the comment(s) in a subsequent final rule based on the proposed rule.

This action will be effective on August 26, 1996 unless EPA receives an adverse comment or a request for a public hearing by August 12, 1996. If EPA receives an adverse comment or hearing request by that date, EPA will withdraw this action via a document in the Federal Register. All correspondence should be directed to the addresses below. Joseph Fernandes (202) 233-9756 or Jim Caldwell (202) 233-9303, USEPA, Office of Mobile Sources, Fuels and Energy Division, Mail Code 6406J, 401 M Street, S.W., Washington, DC 20460. Vol. 61, no. 134 Office of the Federal Register, National Archives and Records Administration 1996-07-11 continuing daily deposited born digital 126 p. Table of Contents: AE 2.7: GS 4.107: AE 2.106: KF70.A2 https://www.govinfo.gov/app/details/FR-1996-07-11 P0b002ee180a24f73 0097-6326 0042-1219 0364-1406 769-004-00000-9 000582072 f:fr11jy96 https://www.govinfo.gov/app/details/FR-1996-07-11 https://www.govinfo.gov/content/pkg/FR-1996-07-11/pdf/FR-1996-07-11.pdf fdlp 36493 36608 DGPO 2010-09-24 2023-05-06 FR-1996-07-11 machine generated eng FR FR-1996-07-11 61 134