In answer to your question yes there are requirements (lots of them) for minimising the risk of contamination during transport, storage and distribution. Without regurgitating the whole of section 6.4:
- Finished products should be protected by appropriate external packaging (should also be protected when moving around site e.g. building to building)
- Pallets should be in good condition (if wood should be dry, clean, free from damage and P, C, M contaminants)
- Contracted transport and storage should be controlled (written standards, specifications, maybe audit)
- All vehicles should be clean (documented cleaning schedules / records)
- Incoming and outgoing vehicle and load check for P, C, M
Hope this helps.
Simon