Appeals to MSPB
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
Except as noted in this paragraph, an individual whose rights or interests under FERS are affected by a final decision of OPM may request MSPB to review the decision in accord with procedures prescribed by MSPB. Decisions made in accord with the procedures referenced in § 841.306(b)(1) are made under subchapter II of chapter 83, title 5, United States Code. Such decisions are not appealable to MSPB under section 8461(e) of title 5, United States Code.
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.