2003 I/M Data Summary
| Description | Count | % |
|---|---|---|
| Total Number of Recorded Vehicles | 4,414,588 | |
| a. LDVs | 4,350,577 | 98.55 |
| b. HDVs | 64,011 | 1.45 |
| Safety Inspection Only Vehicles | 1,092,043 | 24.74 |
| a. New Vehicles (< 2 Years) | 1,069,371 | 97.92 |
| b. Old Vehicles (Age 25+) | 7,652 | 0.70 |
| c. Diesel-Fueled Vehicles | 15,020 | 1.38 |
| Total Number of Emission Tested Vehicles (including those changed ownership) |
3,806,578 | |
| Total Number of Testing Facilities | 4,059 | |
| Total Number of Inspections | 5,282,494 | |
| - Offline Transmissions | 733,651 | 13.89 |
| Number of Completed Emission Tests | 4,703,620 | |
| a. Transient | 4,168,146 | 88.62 |
| - 2nd Chance Transient | 548,673 | |
| - Idle Tests | 535,474 | 11.38 |
| Description | Count | % | Cost |
|---|---|---|---|
| Changed Ownership | 484,033 | 12.72 | |
| Received waivers | 5,176 | 0.14 | 860.09 |
| Overall Waiver Rate | 1.93 | ||
| Failed the Gas Cap Check | 4,262 | 0.11 | |
| Failed ECD Tampering Check | 2,267 | 0.06 |
| Description | Count | % | Cost |
|---|---|---|---|
| From Emission Tested LD Vehicles | 3,757,190 | ||
| a. Passed the First Inspection | 3,491,171 | 92.92 | |
| - Transient | 3,032,379 | 86.86 | |
| - Idle | 458,792 | 13.14 | |
| b. Passed the Last Inspections | 240,309 | 6.31 | 104.55 |
| - Both First and Last Transient | 229,210 | 95.38 | 106.42 |
| - Both First and Last Idle | 5,935 | 2.47 | 52.47 |
| - Transient and Idle Mixed | 5,164 | 2.15 | 81.38 |
| c. Failed the Last Inspection | 25,710 | 0.68 | 629.88 |
| Description | Count | % | Cost |
|---|---|---|---|
| From Emission Tested HD Vehicles | 49,388 | ||
| a. Passed the First Inspection | 47,200 | 95.57 | |
| b. Passed the Last Inspections | 2,057 | 4.17 | 80.04 |
| c. Failed the Last Inspection | 131 | 0.27 | 300.50 |
| Description | Count | % | Cost |
|---|---|---|---|
| From Transient Tested Vehicles | 3,291,294 | ||
| a. Failed | 258,915 | 7.87 | |
| b. Average Emission Reductions | 106.42 | ||
| - HC (g/mi) | 0.98 | 74.24 | |
| - CO (g/mi) | 15.96 | 80.69 | |
| - NOx (g/mi) | 1.85 | 70.88 | |
| From Idle Tested Vehicles | 515,284 | ||
| a. Failed | 9,292 | 1.80 | |
| b. Average Emission Reductions | 7,936 | 56.80 | |
| - HC (ppm) | 311 | 79.73 | |
| - CO (%) | 1.75 | 85.37 |


