Renewable Identification Number (RIN) credit prices from the Fastmarkets Physical API. RINs are the compliance credits generated under the US Renewable Fuel Standard (RFS), assessed by category (D-code) and vintage year.
Data: gold/rin_prices.parquet
Spread between two RIN assessments (Leg 1 − Leg 2), in US cents/RIN. Use to track inter-category or inter-vintage relationships (e.g. D6 vs D4, or 2025 vs 2026).