The Biden Administration has extended the deadline for federal agencies to submit documentation proving that the software they use was developed with appropriate security practices, because the form for reporting on such matters isn't complete.
One of the Administration's tactics was requiring software vendors to attest to their use of federal software development standards defined by the National Institute of Standards and Technology's (NIST's) Secure Software Development Framework [PDF].
The deadline for government agencies to collect attestation certificates from their vendors was September 14. But that dog ain't going to hunt just yet.