ATWC Apprenticeship in Texas TDLR Texas Department of Licensing and Regulation TCEQ Texas Commission on Environmental Quality – Information for Lawn Irrigation and Onsite Sewage Systems RRC Railroad Commission of Texas – Information on Liquefied Petroleum Gas (LPG) registration Texas DPS Texas Department Of Public Safety Crime Record and Sex Offender Search ICC Information on obtaining the International Plumbing Code, International Fuel Gas Code, or International Residential Code IAPMO Information on obtaining the Uniform Plumbing Code TEA Texas Education Agency – Information on obtaining a General Educational Development (GED) certificate TDI State Fire Marshal – Information regarding commercial fire sprinkler licensing TWDB Texas Water Development Board TWC Texas Workforce Commission USDOL United States Department of Labor Bureau of Apprenticeship and Training Texas Sponsors EPA United States Environmental Protection Agency – Information on Lead Abatement or Evaluation Certification