Solutions

One rulebook, whoever you answer to.

Every operator carries the same obligation: know what each machine on site may do, verify it did, and show someone the record. Only the questioner changes, and what they accept as proof.

Add the second supplier without starting over

Each machine after the first opens a fresh negotiation and a fresh integration. Write the operating rules once, and bring each supplier in under them.

Prove the return →

Answer the council without phoning the vendor

Permit conditions, operating envelope and breach history sit in one record you hold, so a councillor's question does not become a supplier request.

Defend the decision →

Evidence oversight without asking the supplier

Your prime wrote provenance into the contract, and the equipment you field comes from somewhere you did not choose. Check it independently and keep the dated record.

See the record →