PSIP Advisory 298- Smoke Testing Compliance Categories Topics Enforcement Programs Enforcement of Clean Truck Check HD I/M Regulation 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 Documents Smoke Testing Compliance Advisory 298 SMOKE_TESTING_COMPLIANCE_ADVISORY_ 298 FINAL.PDF · 169 KB Related Resources PSIP Regulation Test Method 435 Automated License Plate Reader
