1972 Complete SIP Archive for the 1972 Complete SIP, January 1972 https://www.tceq.texas.gov/downloads/air-quality/sip/archive/1972-01-26_completesip_archive.pdf/view https://www.tceq.texas.gov/@@site-logo/TCEQ-logo-header.png 1972 Complete SIP Archive for the 1972 Complete SIP, January 1972 1972.01.26_CompleteSIP_archive.pdf — 129.1 KB