- Tip 339, Emergency and Standby Power Systems, has been updated to include elevator hoistway smoke control/ventilation under the legally required standby power sources section.
- DDR 28-2015, Local Infrastructure Project Area Boundary, describes boundaries for the purpose of collecting tax revenue. Written comments on the proposed adoption may be submitted through November 10, 2015 to Director, Department of Planning and Development, 700 5th Avenue, Suite 2000, P.O. Box 34019, Seattle, Washington 98124-4019.
- DR 26-2015, Grading Season Extension, outlines the procedures for getting Director’s approval for grading between Oct. 31 and April 1. This rule supersedes DR 17-2011.
- DPD DR 27-2015/SDOT 09-2015, Transportation Management Programs, establishes the responsibilities for projects subject to requirements to develop a transportation Management Program. This rule supersedes DR 10-2012.