Is there a navy equivalent to ap1358?

What the title says really

Quick google brings up BR3

@MattB you will probably know

I’ve a copy if it’s needed DM if you would like it emailed

You’ll find that it’s not as thoroughly prescriptive as AP 1358.

Correct, naval service dress regs are part of BR3.

The current version is publicly-hosted, not too tricky to find.