Intermittent employment
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) Appropriate use. An intermittent work schedule is appropriate only when the nature of the work is sporadic and unpredictable so that a tour of duty cannot be regularly scheduled in advance. When an agency is able to schedule work in advance on a regular basis, it has an obligation to document the change in work schedule from intermittent to part-time or full-time to ensure proper service credit.
(b) Noncompetitive movement. Intermittent employees serving under career appointment may move to other positions in the same way as other regular career employees.
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.