Letters of Conformance

Lubricant marketers’ Letter of Conformance
Under the European Engine Lubricant Quality Management System (EELQMS), lubricant marketers or manufacturers making claims against the ACEA Oil Sequences are required by ACEA to submit a Letter of Conformance to ATIEL. Submission of a Letter of Conformance implies a commitment to develop and manufacture engine lubricants in accordance with the guidelines described in the ATIEL Code of Practice. Currently, some 70 lubricant companies in Europe have signed a Letter of Conformance.

A marketers’ Letter of Conformance template is given in Appendix E of the Code of Practice and can also be downloaded below, along with a list of signatories. Letters of Conformance are normally renewed every two years in line with technical updates to the Code of Practice – see renewal process document below.

Base stock manufacturers’ Letter of Conformance
Base stock manufacturers, including partner groups, wishing to declare that they manufacture base stocks in accordance with the ATIEL Code of Practice (Base Stock Quality Assurance guidelines described in Appendix B) may also sign a Letter of Conformance.

A Base stock manufacturers’ Letter of Conformance template is provided in Appendix E of the Code of Practice and can also be downloaded below along with a list of signatories.

Signed Letters of Conformance should be submitted to:
ATIEL
Boulevard du Souverain 165

B-1160 Bruxelles

Belgium