Requires the department of natural resources to, in collaboration with educational institutions, municipalities, corporations, the technical advisory committee created in this act, state and national service organizations, and environmental organizations, conduct a prioritized statewide inventory of community and urban forests.

Requires the department to, in collaboration with a statewide organization representing urban and community forestry programs, and with any statutorily required urban forestry stakeholder task force managed by the department of community, trade, and economic development, conduct an urban forest assessment and develop recommendations to the appropriate committees of the legislature to improve community and urban forestry in Washington.

Requires the department to, in collaboration with municipalities, the technical advisory committee created in this act, and a statewide organization representing urban and community forestry programs, develop an implementation plan for the inventory and assessment of the community and urban forests in Washington.

Requires the commissioner of public lands to appoint a technical advisory committee to provide advice to the department during the development of the criteria and implementation plan for the statewide community and urban forest inventory and assessment required under RCW 76.15.020.