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This week, FHWA finally updated the list of agencies approved to use the "Alternative Design for the U.S. Bicycle Route (M1-9) Sign" (IA-15) after I wrote in asking about ODOT, which apparently got approval in 2019. WVDOT also got interim approval. [1]This edit updates infoboxes and junction tables to reflect the new interim approvals. – Minh Nguyễn💬23:53, 7 August 2021 (UTC)Reply
AASHTO's spring 2021 U.S. Bicycle Route approvals have revealed that it's possible for a three-digit USBR number to be repeated in a different state, with the approval of USBR 230 in Ohio. This edit introduces an optional disambiguating suffix to links to USBRs. – Minh Nguyễn💬 17:56, 10 August 2021 (UTC) Minh Nguyễn💬17:56, 10 August 2021 (UTC)Reply
Please implement Special:Diff/1156104567, which adds Wisconsin and Vermont to the list of states that use the green-and-white U.S. Bicycle Route shield under an FHWA interim approval. I've uploaded the new route shields to Commons. Thanks! – Minh Nguyễn💬06:54, 21 May 2023 (UTC)Reply
The green-and-white design, which was previously authorized in some states under Interim Approval 15, has become the nationwide standard, and IA-15 itself has been terminated. All the relevant files in c:Category:U.S. Bicycle Route shields have already been renamed. This is a very recent change, so plenty of the old shields are still posted in the wild, but these are now considered nonstandard and will eventually become due for replacement.
In a few cases, we have article sections about former routes that were deleted prior to the state being granted IA-15 or adopting the 11th edition. For these routes, I've added a new USBR 2009 entry that these article sections will need to migrate to, by analogy with the existing entries for US 1926, US 1948, and US 1961. Some of these sections, such as U.S. Bicycle Route 221, currently show the wrong shield because the state was granted IA-15 after the route was deleted.