SDD Transmittal Records

To request a copy of a transmittal, please send a message to the email address at the bottom of this webpage.






​Date ​Transmittal Number ​Affected SDDs
​2/16/26
​439​
​9, 15
​11/17/25
​438
​9, 13, 15
​8/15/25
​437​
​14, 16
​​5/15/25
​436​
​8, 15
​2/14/25
​435​
​9, 14
​11/15/24
​434​
​9, 10, 15
​​8/15/24
​433​
​9, 15
​5/15/24
​432​
​15
2/15/24
4​31
​8
11/15/23
​430
​15

Future Transmittal Schedule


Transmittal​Author - submit changes to SDD Editor

​SDD Editor - submit to FHWA for approval

​FHWA - return comments to SDD Editor​FDM Editor - publish transmittal
​​T440
​3/15/26
​3/29/26
​4/29/26
​5/15/26
​​T441
​6/15/26
​6/29/26
​7/29/26
​8/17/26
​​T442
​9/15/26
​9/29/26
​10/29/26
​11/16​/26
​T443
​12/15/26
​12/29/26
​1/29/27
​​2/15/27
​T444
​3/15/27
​3/29/27
4/29/27
5/15/27​

All correspondence on transmittal material should be sent to:

FDMSupport@dot.wi.gov​