Rule History Title 30 Texas Administrative Code Chapter 112 Sulfur Dioxide Rules - Chapter 112 https://www.tceq.texas.gov/downloads/air-quality/research/reports/emissions-inventory/rule-history-title-30-texas-administrative-code-chapter-112/view https://www.tceq.texas.gov/@@site-logo/TCEQ-1072x1072.png Rule History Title 30 Texas Administrative Code Chapter 112 Sulfur Dioxide Rules - Chapter 112 112-history.pdf — 168.6 KB