
What Is the Federal Register (And Why It Matters for Disability Applicants)
The Federal Register is the official daily record where the U.S. government publishes proposed and final rules. For Social Security disability applicants, it’s the first place to see updates to SSA policies, Blue Book listings, and application procedures — before they take effect.

What Is the Code of Federal Regulations (CFR) and How Does It Apply to SSDI?
Ever wonder where the Social Security Administration (SSA) gets its rules for deciding who qualifies for disability benefits? It all comes from the Code of Federal Regulations (CFR) — the detailed federal rulebook that guides every SSDI decision. Inside Title 20 of the CFR, you’ll find the legal definition of disability (§404.1505), the five-step evaluation process, and the Blue Book of medical listings. Together, these regulations show exactly how SSA reviews your medical evidence, determines if you meet the definition of disability, and explains your right to appeal. Understanding the CFR can help applicants, advocates, and medical providers see how the SSDI system really works.
Learn how the CFR, Blue Book, and POMS connect to shape your SSDI claim.