I suspect this will depend very much on how your own company is set up - the division between regulatory, QA, "technical" etc varies quite widely between businesses.
How do you achieve what you're aiming in this area?
e.g. you presumably have procedures (even if not yet documented) to verify that raw materials, production processes, packaging materials, labelling, other documents provided (e.g. statements on regulatory compliance, form of ingredient declaration, legal name etc) all meet the requirements in the target market(s)?
This could be split by region to make more specific WIs - for example, for the US market you need to check a/b/c, for EU you check x/y/z etc.
Really I'm not sure there is much of a shortcut to following through your current process and writing that up as a starting point, and then reviewing it to fill in any gaps.