[Federal Register Volume 62, Number 123 (Thursday, June 26, 1997)] [Proposed Rules] [Pages 34418-34419] From the Federal Register Online via the Government Publishing Office [www.gpo.gov] [FR Doc No: 97-16740] ----------------------------------------------------------------------- ENVIRONMENTAL PROTECTION AGENCY 40 CFR Part 52 [IN79-1B; FRL-5848-5] Approval and Promulgation of State Implementation Plan; Indiana AGENCY: Environmental Protection Agency. ACTION: Proposed rule. ----------------------------------------------------------------------- SUMMARY: The United States Environmental Protection Agency (USEPA) is proposing to approve a February 5, 1997, request from Indiana, for a State Implementation Plan (SIP) revision for the Vanderburgh County ozone nonattainment area. The revision is for a transportation control measure (TCM) to reduce the emissions of volatile organic compounds (VOCs) from motor vehicles by converting city-owned vehicles to compressed natural gas as a fuel. Reductions in VOCs will help protect the health and welfare of the public by reducing the emissions of VOCs which contribute to the formation of ground level ozone, commonly known as smog. High concentrations of ground level ozone can aggravate asthma, cause inflammation of lung [[Page 34419]] tissue, decrease lung function, and impair the body's defenses against respiratory infection. DATES: Written comments on this proposed action must be received by July 28, 1997. ADDRESSES: Written comments should be sent to: J. Elmer Bortzer, Chief, Regulation Development Section, Air Programs Branch, (AR-18J), U.S. Environmental Protection Agency, Region 5, 77 West Jackson Boulevard, Chicago, Illinois, 60604. FOR FURTHER INFORMATION CONTACT: Patricia Morris, Environmental Scientist, Regulation Development Section, Air Programs Branch (AR- 18J), U.S. Environmental Protection Agency, Region 5, 77 West Jackson Boulevard, Chicago, Illinois 60604, (312) 353-8656. SUPPLEMENTARY INFORMATION: For additional information, see the Direct Final rule which is located in the Rules section of this Federal Register. Copies of the request are available for inspection at the following address: (Please telephone Patricia Morris at (312) 353-8656 before visiting the Region 5 office.) EPA, Region 5, Air and Radiation Division, 77 West Jackson Boulevard, Chicago, Illinois 60604-3590. List of Subjects in 40 CFR Part 52 Environmental protection, Air pollution control, Hydrocarbons, Intergovernmental relations, Ozone. Dated: June 11, 1997. Michelle D. Jordan, Acting Regional Administrator. [FR Doc. 97-16740 Filed 6-25-97; 8:45 am] BILLING CODE 6560-50-P