Signing the Base Stock Manufacturer’s Letter of Conformance (LoC) implies a commitment by base stock manufacturers and partner groups to the quality assurance guidelines described in Appendix B of the ATIEL Code of Practice for the manufacture of base stocks to be used in engine lubricants for which compliance with ACEA Oil Sequences is to be claimed. The ATIEL Code of Practice forms part of the European Engine Lubricant Quality Management System (EELQMS).
Administration of the LoC scheme is now carried out by SAIL, Services to Associations and Industry in the Lubricants Sector, on behalf of ATIEL. The new list of signatories for the validation period starting 1 November 2017 can be found on the SAIL website here.The appearance of an entity on this list only means that ATIEL has entered in its register, as of the date of the list, a valid Letter of Conformance of the entity concerned, appearing, on the face of it, to be genuine. ATIEL assumes no responsibility for the implementation by the entities identified above of their obligations, as defined in such Letter of Conformance, or for any damage that a breach thereof may cause to third parties. ATIEL cannot be held responsible for any claims resulting from inclusion and non-inclusion of entities in this list. ATIEL also declines any responsibility with regard to the external audit procedure, which belongs to the domain of the relevant auditor.