correct 120vav coil wiring practices

[SLASHer65]

we have a feud happening here as to the correct way to wire a 120v coil on a relay. does the common go to a1 or a2? any official code or rule info would be greatly appreciated.

slash

 

[buzzp]

Should make no difference.
Not aware of this mention in any standard and would be surprised if it is.