Proposed Rule Amendments: §§ 3.15 and 3.58

The proposed amendments to rules §§ 3.15 and 3.58, related to Senate Bill 1150 (89th Legislative Session, 2025), have been posted for public comment. Comments will be accepted until 5:00 pm on Friday, November 13, 2026. For more information, including an online comment form, please visit the RRC Proposed Rules page.

LP-Gas Vehicle Conversion Manuals

Use the links below to view or download a PDF copy of LP-gas vehicle conversion manuals. AFRED developed these courses and manuals for the Propane Education and Research Council, under PERC Docket 17243.

Converting Vehicles to Propane Autogas

Part 1: Installing Fuel Tanks and Fuel Lines (PDF)

Part 2: Installing Underhood Components (PDF)

Part 3: Installing and Operating Dispensers (PDF)

Part 4: Troubleshooting Four Current Autogas Fuel Systems (PDF)
Off-Road Applications of Propane Engine Fuel (PDF)