The National Park Service provides food service
to visitors through cooperative agreements with independent food vendors.
These operations are managed through contractual agreements between the
vendor and the Concessions Program, Washington Support Office (WASO).
The Public Health Program provides support for these agreements through
the provision of periodic food establishment assessments. The assessments
are conducted on a frequency established through negotiations with the
Concessions Program Manager and is published in DO-48A [pdf] (currently
under revision). All assessments are done under the guidelines established
in the most recent version of the Food and Drug Administration (FDA) Food
Code. The current version is the Food