The State Commute Trip Reduction law applies to all employers with 100 or more “affected” employees who work at a single worksite, and to all state agencies in the urban growth areas of Lacey, Olympia, and Tumwater.
“Affected employees” are employees who work 35 or more hours per week, and are scheduled to begin work between 6 and 9 a.m. on two or more weekdays for at least 12 continuous months at a single worksite.
All the 2017 survey results about worksites’ effectiveness are available on-line. Here are some of the current numbers:
| Location | Total Employees | CTR Employees | Avg Home to work miles | Non-drive alone trips |
| City of Lacey | 254 | 239 | 16.8 | 5.9% |
| City of Tumwater | 180 | 155 | 13.5 | 16.8% |
| Olympia City Hall | 284 | 256 | 10.8 | 16.3% |
| County Courthouse | 562 | 405 | 14.7 | 16.7% |
| St. Peter Hospital | 1,500 | 772 | 17 | 12.3% |
| Twin Star Credit Union | 167 | 149 | 17.5 | 5.1% |
| Department of Ecology | 900 | 844 | 14.9 | 27.6% |
| Department of Health | 1,511 | 1,458 | 18.3 | 24.8% |
| Labor & Industries | 1,971 | 1,733 | 16.5 | 31.2% |
| State Senate | 170 | 162 | 14.7 | 19.2% |
| SPSCC | 280 | 193 | 13 | 16.6% |
| TRPC | 17 | 16 | 6.9 | 21.6% |