Renewable Natural Gas (RNG) and RIN-Revenue Program

Dallas Area Rapid Transit (DART) has issued a Request for Proposal (RFP) for a Renewable Natural Gas (RNG) and RIN-Revenue Program, solicitation number P-2093872, seeking qualified firms to provide renewable natural gas for its bus fleet in the Dallas metropolitan area. The contract will run from January 1, 2026, through December 31, 2030, with an estimated annual RNG fuel volume of approximately 1,076,300 MMBTU, decreasing slightly in subsequent years. The primary objectives include supplying pipeline-quality natural gas through the ATMOS Network to three DART bus fueling facilities, generating D3 Renewable Identification Numbers (RINs) under the EPA's Renewable Fuel Standard, and creating a revenue-sharing mechanism for environmental credits. Proposals will be evaluated on a 1000-point scale, with 400 points allocated to technical factors (including sustainability of feedstock supply, technical expertise, and reporting) and 600 points for pricing considerations. The solicitation requires a comprehensive proposal with specific documentation, including a cost pricing schedule, representations and certifications, and technical proposal, with proposals due on November 7, 2025, at 4:00 PM local time.

The solicitation includes provisions for Minority and Woman-Owned Business Enterprise (MWBE) participation, though specific percentage requirements are not specified in the documents. DART has established detailed guidelines for counting MWBE participation, including specific rules for calculating credit for different types of business activities. Contractors must submit documentation demonstrating commitment to MWBE involvement, including Intent to Perform as a Subcontractor forms and Vendor Payment Reports. Insurance requirements include a $4,000,000 Commercial General Liability policy. While no specific incumbent vendor is mentioned, the contract structure involves the selected contractor providing RNG environmental attributes at no cost and compensating DART through a share of revenues generated from RIN sales. The contractor will be required to guarantee a minimum D3 RIN credit value and provide monthly reporting, with peak fueling occurring between 7:00 p.m. and 4:30 a.m. daily across the three specified fueling facilities in Dallas.