File:WA-99.svg
文件说明
| 说明WA-99.svg | English: 24-by-24-inch (600 mm × 600 mm) Washington state highway route marker. |
| 日期 | 2018年8月27日, 04:47 (UTC) |
| 来源 | Washington State Department of Transportation |
| 作者 | Fredddie, originally by PHenry, et al |
授权协议
Public domainPublic domainfalsefalse |
 | This file is in the public domain because it comes from the Washington Modification to the Manual on Uniform Traffic Control Devices, sign number M1-601, which states that "WSDOT adopted the [ Manual on Uniform Traffic Control Devices] 2009 on November 17, 2011. The MUTCD 2009 and Washington Modification are effective for use in Washington beginning December 19, 2011." The federal MUTCD states specifically on its page I-1 that:
No modifications supersede this provision of the MUTCD in Washington. |  |
