Exceptions to the rules against age discrimination
Primary source
Verbatim text below is from the Electronic Code of Federal Regulations (eCFR), a public-domain U.S. government work. Always verify the current version with the eCFR before relying on it for any legal matter.
Full Text
A recipient is permitted to take an action, otherwise prohibited, if the action reasonably takes into account age as a factor necessary to the normal operation or achievement of any statutory objective of a program or activity. An action reasonably takes into account age as a factor if:
(a) Age is used as a measure or approximation of one or more other characteristics; and
(b) The other characteristic must be measured or approximated for the normal operation of the program or activity to continue, or to achieve any statutory objective of the program or activity; and
(c) The other characteristic can be reasonably measured or approximated by the use of age; and
(d) The other characteristic is impractical to measure directly on an individual basis
This is legal information, not legal advice. Laws vary by jurisdiction and change frequently. Always verify current law with official sources and consult a licensed attorney in your jurisdiction for advice on your specific situation.