State Emission Standards - Gas: MISSOURI

2025 Ford Escape ST-Line Select HybridSECTION MISSOURI
MISSOURI EMISSION STANDARDS - JEFFERSON, ST. CHARLES & ST. LOUIS COUNTIES - IM240 TEST

Application HC gpm (CO gpm) NOx gpm
Light Duty Vehicles (6000 GVWR Or Less)
1981-82 0.80 (30.0) 2.0
1983-95 0.80 (15.0) 2.0
1996 & Newer 0.60 (10.0) 1.5
Light Duty Trucks (6000 GVWR Or Less)
1981-83 3.40 (70.0) 4.5
1984-87 1.60 (40.0) 4.5
1988-95 1.60 (40.0) 2.5
1996 & Newer (Less Than 3750 LVW) 0.80 (13.0) 1.8
1996 & Newer (3750 LVW Or Less) 0.60 (10.0) 1.5
Light Duty Trucks (6001-8500 GVWR)
1981-83 3.4 (70.0) 4.5
1984-87 1.6 (40.0) 4.5
1988-95 1.60 (40.0) 3.5
1996 & Newer (5750 ALVW Or Less) 0.80 (13.0) 1.8
1996 & Newer (5750 ALVW Or More) 0.80 (15.0) 2.0
MISSOURI EMISSION STANDARDS - FRANKLIN, JEFFERSON, ST. CHARLES & ST. LOUIS COUNTIES - IDLE TEST

Application (1) HC ppm (CO %)
1971-74 700 (7.0)
1975-79 600 (6.0)
1980 300 (3.0)
1981 & Newer 220 (1.2)
(1) 8500 GVWR or less.
MISSOURI EMISSION STANDARDS - FRANKLIN, JEFFERSON, ST. CHARLES & ST. LOUIS COUNTIES - REMOTE SENSING CLEAN SCREEN TEST

Application (1) HC ppm (CO %) NOx ppm
All Vehicles (8500 GVWR Or Less)
1971 & Newer 200 (0.5) 2000
(1) 8500 GVWR or less.
RENDER: 1.0x

NO RELATED

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • You smell fuel, burning insulation, or see smoke.
  • Brakes feel soft, pull hard to one side, or make grinding noises.
  • The engine overheats, stalls repeatedly, or misfires under load.
  • You are missing required tools, torque specs, or safe lifting equipment.
  • You are not confident in the next step or safety outcome.