PSIP Advisory 298- Smoke Testing Compliance Download PDF · 169 KB Categories Topics Enforcement Programs Heavy-Duty Diesel Inspection & Periodic Smoke Inspection Programs Type Information Advisory 298- Smoke Testing Compliance Advisory, provides information on the proper reading and interpretation of opacity test results using currently available smoke meters for Heavy Duty Diesel Vehicles.Updated 11/20/2019 Related Resources Response Letter to SEP Audit Report SEP Audit Report Supplemental Environmental Projects Policy
