Usually, these facilities are called Common Hazardous Waste Treatment Storage Disposal Facility (CHWTSDF). These facilities need to have State Pollution Control Board consent and CPCB approval. Usually, these facilities have their own agreement format which is to be signed by manufacturers while entering into an agreement with them. Once the agreement is done, these facilities shall issue a Certificate of Membership to all their member industries.
Hope the matter is clear. Should you have any queries, please post the same. I shall be happy to help you.
Regards,
Sudhir