The following references summarize requirements under the Revised Code of Washington that WSDOT is charged with carrying out on behalf of Cities and Counties.
| RCW | Summary |
| 35.21.260 | Requires an annual report on city street operations to the State Secretary of Transportation. |
| 35.77.010 | Each city is required to submit a 6-year transportation improvement plan to the State Secretary of Transportation. Responsibility is delegated to H&LP. |
35.78.020
[1] Note | Establishes a state design standards committee with six City representatives, who must each be the “chief engineer”, with a seventh to be the “State Aid Engineer” for standards on city streets. |
43.32.010
[1] Note | Establishes a state design standards committee with six County representatives, who must each be the “county engineer”, with a seventh to be the “State Aid Engineer” for standards on county roads. |
| 35.78.030 | Requires adoption of state design standards for application on city arterial streets. Responsibility is delegated to H&LP. |
35.78.040
[1] Note | Requires that the state design standards be applied to construction on city arterial streets, and that specifically the “State Aid Engineer” approve any deviations from those standards. |
| 35.75.060 | Authorizes cities or towns to use street or road construction, maintenance, or improvement funds for bicycle facilities, and to improve existing streets and roads for bicycle traffic, but not solely for recreation purposes. Requires that bicycle facilities meet or exceed WSDOT standards. |
| 36.75.250 | Permits WSDOT to intervene if county roads are not being adequately maintained. |
| 36.75.260 | Requires an annual report on county highway operations to the State Secretary of Transportation. |
| 36.81.121 | Each county is required to submit a 6-year transportation improvement plan to the State Secretary of Transportation. Responsibility is delegated to H&LP. |
36.86.030
[2] Note | Requires Counties to have construction standards that are no less than those specified in Chapter 36, and to file those standards with WSDOT. Responsibility is delegated to H&LP. |
| 36.86.040 | Requires Counties to use the MUTCD and supplements from WSDOT. |
36.86.080
[1] Note | Requires that the state design standards be applied to construction on county primary roads, and that specifically the “State Aid Engineer” approve any deviations from those standards. |
| 36.82.145 | Authorizes counties to use county road funds for bicycle facilities, and to improve existing streets and roads for bicycle traffic. Requires that bicycle facilities meet or exceed WSDOT standards. |
| 47.36.030 | Requires the State Secretary of Transportation to provide specifications for traffic control devices (MUTCD) to Cities and Counties. Responsibility is delegated to H&LP. |
| 47.52.027 | Permits the State Secretary of Transportation to establish standards for maintenance, construction and access control on the National Highway System, which must take into account U.S. Commerce and Transportation requirements, and which are then required to be used for construction on those routes. |
Additional Notes:
[1] This requirement is specifically given to the State Aid Engineer, currently delegated to the H&LP Operations Engineer, and is paralleled in 35.78 and 43.32 RCW. The City and County Design Standards Committees are combined and function as one committee in practice.
Further, WSDOT standards will apply within the curbs when a city street is also a state highway.
[2] The adopted City and County Design Standards are managed by H&LP, and no other submittals are enforced.