WHQL signing a driver for Win7 X64 ONLY

Question

is it possible to WHQL sign a driver for Windows 7 x64 ONLY , an get a
valid signature (cat-file) for x64 ONLY ?

Since  enforcing DEVFUND-0014  on 1. March 2008 , with the requirement
to submit a x64 driver when signing a x86 driver, the opposite direction
is not clear to me: whether I need to submit  a 32-bit driver too,  when I
only want to sign a x64 driver ?
Thank you.

Answer 1

Microsoft accept WHQL submission for Win7 x64 only or x86 only or both at same package. But diferent submission fee if you separate them,

For example, you maybe submit Win7 x64 ($250) today. But customer maybe request Win7 x86 ($250) WHQL signature file next week. So, you have to pay $500 USD for your device/system WHQL submission.

If you submit Win7 x86 and x64 both at same package, you just need $250 USD. Please refer more detail information from Windows 8.1 Hardware Certification Policy 

Thanks, Steve

Answer 2

Thank you for this useful and clarifying answer.