During 2026 Q1–Q2 QC, Corina found that many PY2026 fuel substitution measures are missing a Fuel ID and still pass CEDARS validation. Fuel substitution is no longer flagged in Delivery Type, so these claims now skip the fuel substitution logic whenever neither Fuel ID nor Measure Impact Type flags them. Roopa confirmed that validation uses Fuel ID when it is filled in and falls back to Measure Impact Type when it isn't. This ticket tightens Fuel ID validation for the 2027 claims spec and accounts for legacy measure packages that were built without a Fuel ID.
"In the Q1-2 QC, we notice that, since Fuel Sub is no longer specified in the Delivery Type, many Fuel Sub measures are lacking FuelIDs and getting through the CEDARS validation process when we think they should have been errored."
