Is it limited to "repair shops" or to anyone who's happy to sign the NDA (such as an end-customer looking to repair their own machine after spilling a drink)?

If the former, what's the criteria that determines whether one is a "repair shop"? Would Honest Achmed's Used Laptops and Certificates[1] qualify if he wanted to repair his cousin Mustafa's laptop?

[1]: https://bugzilla.mozilla.org/show_bug.cgi?id=647959