• 25-12.004. Definitions

• 25-12.005. Codes and Standards Adopted

• 25-12.007. Commission Compliance Evaluations

• 25-12.008. New, Reconstructed or Converted Facilities

• 25-12.009. Safety

• 25-12.020. Construction Specifications and Inspections

• 25-12.021. Use of Plastic Pipe

• 25-12.022. Requirements for Distribution System Valves

• 25-12.024. Prohibition of Pipelines Under Buildings

• 25-12.027. Welder Qualification

• 25-12.028. Marking of Materials

• 25-12.029. Limiting Use of Pipeline Casings

• 25-12.030. Construction Inspection

• 25-12.040. Leak Surveys, Procedures and Classification

• 25-12.041. Receiving of Gas Leak and Emergency Reports