Remote Functions

The IATF16949 rules for achieving IATF recognition 5th edition, define that only manufacturing sites are eligible to be IATF16949 certified. One manufacturing site could be a remote location for other sites for many different activities, for example, product design, process design, contract review, warehousing, etc.

Your sister company during stage 1 of the IATF16949 certification audit must communicate to the certification body that has a manufacturing site supported by them with warehousing activity. For the next IATF16949 audit at your company will be required to present the IATF audit report from your sister company mentioning that Warehousing activities are being supported by them. 

Considered that your site is a manufacturing site that is already IATF16949 third-party certified, and your sister company supports you with warehousing support functions, according to IATF16949 requirement 4.3.1 that must be included at the defined scope of quality management system for your site. Your IATF16949 certificate is going to have two pages, where the second one will mention the remote location.