Is anyone aware of expiry dates of some of the AWS APN programs?

My team is an AWS APN partner and Here are some of the questions they have:

• We have recently been approved for AWS Service Delivery Program for a particular Service, how long is it valid for?
• We have recently been approved for AWS Competency Program for a particular Competency, how long is it valid for?

AWS Service Ready Program as well.

I understand that the AWS FTR are valid for 2years and AWS Certifications for 2/3 years depending on which you choose.

What about this programs, If anyone can share some information, that would really help.