WASTE oil (not used) from US Steel (NYSE: X):
Waste oil will be sourced from NOCO, U.S. Steel and other
sources meeting the requirements of 6NYCRR Part 225-1 and
225-2. NOCO pre-tests its waste oil shipments and will
provide certifications with the waste oil trucks. U.S.
Steel does not have an in-house laboratory. Therefore
waste oil shipments will be screened/analyzed prior to
usage. If a supplier does not supply a certificate of
analysis upon arrival, the trailer will be unloaded into a
tank and segregated in that tank until the material can be
sampled, analyzed and certified that it meets the
requirements of 6NYCRR Part 225-1 and 225-2. Unacceptable
loads will be either returned to the generator or shipped
to an approved waste disposer.
(that's from the DEC)