Proposed, final or in effect? How to tell where a new rule stands

The short answer

Look past the headline to the official document and check three things:

1. What kind of document it is. A proposed rule is a draft that asks the public for comments. While it is proposed, the current rules still apply. A final rule has been adopted. An interim final rule is adopted first, with comments taken afterward.
2. The dates it lists. A final rule starts on its effective date. Some rules also have a later compliance or applicability date, when the plans, states or businesses it covers must follow it. In California, a signed bill usually takes effect on January 1 of the next year.
3. What has happened since. An agency can delay a rule, Congress can cancel some rules, and a court can pause one or set it aside. Look for newer documents before you rely on an older one.

Many health rules work through your health plan, your state Medicaid program (Medi-Cal in California) or your clinic, so a change may reach you later than the rule's own dates. A notice from your plan or program tells you when it applies to you.

The federal path, step by step

Congress passes laws (statutes). Federal agencies, such as the Centers for Medicare & Medicaid Services (CMS), then write regulations (rules) to carry many of them out. Each step leaves a dated public record in the Federal Register, the government's daily journal, published every business day.

1. Proposed rule. The agency publishes its plan in the Federal Register's "Proposed Rules" section. The notice must say what the agency proposes and what law gives it the power to act. The public can then send written comments by the deadline in the document's DATES section.
2. Comments close. The agency weighs what it received and may adopt, change or drop the proposal. It can also extend or reopen the comment period.
3. Final rule. The adopted rule appears in the "Rules and Regulations" section with a statement of its basis and purpose.
4. Effective date. This is the day the rule becomes part of the official Code of Federal Regulations. By law, a final rule generally must be published at least 30 days before it takes effect. That 30-day wait does not apply to rules that grant an exemption or ease a restriction, to interpretive rules and policy statements, or when the agency finds and explains "good cause" for a shorter wait.
5. Compliance or applicability date. Some rules give the people they regulate extra time. In the Office of the Federal Register's terms, the effective date is when the rule changes the official regulations; the compliance or applicability date is when the people covered must follow it.

Rules the federal Office of Information and Regulatory Affairs labels "major" (for example, rules likely to affect the economy by $100 million or more a year) generally cannot take effect until at least 60 days after they are published or reach Congress, whichever is later.

After the effective date, the change appears in the eCFR, a free, daily-updated online version of the federal regulations that also flags upcoming changes. It is not yet the official legal edition, so check important points against the Federal Register document.

A law first, a rule second. A federal statute takes effect when it is enacted unless Congress clearly says otherwise, but many health laws set later start dates or leave the details to an agency rule.

Three real examples, as of October 22, 2026

The table covers each document's status only, not everything it does.

In the first row, the law is on the books, but the rule that carries it out is still a draft. In the second row, "plan years beginning on or after January 1, 2027" means a job-based plan whose year starts July 1 begins the new consumer-tool rules on July 1, 2027, not in January.

KPSGILL keeps dated record pages for the Transparency in Coverage final rule and the Medicare Advantage proposal. The full documentary records index and the decision calendar list other dated comment deadlines and effective dates.

How to read a Federal Register document in two minutes

Three parts near the top answer most status questions:

• ACTION. Names the document type: "Proposed rule," "Final rule," "Interim final rule with comment period," "Direct final rule," "Notice," or a correction, delay or withdrawal.
• DATES. Lists the comment deadline, the effective date and any compliance or applicability dates. Read every line; one document can set different dates for different parts.
• FOR FURTHER INFORMATION CONTACT. The agency staff who answer questions about the document.

Why the news can come early. The Federal Register posts documents for "public inspection" before they are published, usually on the business day before and sometimes earlier, and news stories often start then. The Medicare Advantage proposal above went on public inspection on October 16, 2026, and was published October 20.

Where the comments live. On regulations.gov, each rulemaking has a docket, an online folder of the documents and public comments. It covers participating federal agencies only, not state or local rules. To send a comment yourself, see how to comment on a proposed health rule.

Faster paths: interim final and direct final rules

Interim final rules. An agency may skip advance notice and comment if it finds good cause, meaning the usual process would be impracticable, unnecessary or against the public interest. Congress can also tell an agency to skip it. The rule takes effect first, and comments come afterward. The agency may revise it later. The Medicaid rule above is one: the 2025 law behind it called for an interim final rule by June 1, 2026.

Direct final rules. These are for routine changes an agency expects no one to oppose. The rule takes effect on a set future date unless someone sends an adverse comment by the deadline. If that happens, the agency withdraws the rule.

Guidance is not a rule

Agencies also issue guidance: fact sheets, frequently asked questions, letters to states, manuals and policy statements. Guidance explains how an agency reads the law and plans to run a program. It generally does not have to go through notice and comment. The U.S. Supreme Court has said interpretive rules "do not have the force and effect of law" (Perez v. Mortgage Bankers Association, 2015).

Guidance still matters, because it shows how the agency plans to apply the law. But if a headline says a guidance document "requires" something, look for the statute or regulation it points to. A press release or fact sheet is a summary of a rule, not the rule. For a deeper treatment, see Statute vs. Regulation vs. Guidance.

What can still change a rule after it is final

• The agency delays, stays or reverses it. An agency can publish a notice delaying an effective date that has not arrived yet. After that date, it must "stay" (suspend) the rule's text instead. An agency can also postpone a rule while a court reviews it. Changing or repealing a rule is itself rulemaking, so news that an agency "will rescind" a rule usually means a new proposal is coming, not that the old rule is gone.
• Congress disapproves it. Under the Congressional Review Act, agencies must send rules to Congress and the Government Accountability Office (GAO) before they can take effect. If a joint resolution of disapproval becomes law, the rule does not take effect, or stops, and is treated as though it never took effect. The agency cannot reissue the rule in substantially the same form unless a later law specifically allows it. GAO keeps a public database of the rules it receives.
• A court pauses it or sets it aside. A federal court reviewing a rule can postpone its effective date, issue an injunction, or "hold unlawful and set aside" the rule, often called vacating it. Who is covered matters. In June 2025 the Supreme Court said "universal" injunctions likely go beyond federal courts' power, but it left open whether courts may vacate agency rules under the Administrative Procedure Act. So an order may protect only the people, groups or states that sued, or it may reach further. Read the order itself, or a tracker that names the controlling order, such as the KPSGILL litigation docket, before you assume a rule is "blocked" for everyone.
• Corrections. A correction notice fixes errors in a document already published. The Medicaid rule above had one on June 29, 2026; read the corrected text.

In California, bills and regulations run on different clocks

New state laws

A California bill moves through these stages:

• Introduced and amended. The text can change many times. Nothing is law yet.
• Enrolled. Both houses passed the same text, and the final version is proofread and delivered to the Governor. Still not law.
• Signed, vetoed or law without a signature. The Governor signs or vetoes the bill. A bill the Governor does not return in time becomes law without a signature. In 2026 the Governor's last day to act on bills from the session was September 30. See what happens to a bill between adjournment and September 30.
• Chaptered. The Secretary of State gives the new law a chapter number.
• Effective. Most new laws take effect on January 1 of the following year. For bills signed in 2026, that is generally January 1, 2027. Urgency laws take effect immediately; they need a two-thirds vote in each house and must be necessary right away to protect the public peace, health or safety. So do laws calling elections, laws providing for tax levies, and laws making appropriations for the state's usual current expenses. Any bill can set its own later start date for some or all of its parts.

The Legislature's bill site, leginfo.legislature.ca.gov, shows each bill's text and status. KPSGILL's bill dossiers record the final action on tracked health bills, and Twelve new California rules explains several that start in 2027.

New state regulations

State agencies, such as the Department of Health Care Services, write regulations under California's Administrative Procedure Act, and the Office of Administrative Law (OAL) reviews them.

1. The agency publishes a notice of proposed action in the California Regulatory Notice Register, which OAL publishes every Friday.
2. The public has at least 45 days to send written comments. If no hearing is scheduled, anyone may ask for one at least 15 days before comments close.
3. If the agency makes substantial, related changes, it must allow at least 15 more days of comment on those changes.
4. Within one year of the notice, the agency sends the finished file to OAL. OAL has 30 working days to approve or disapprove it.
5. Approved regulations are filed with the Secretary of State. Most then take effect on one of four dates:

A regulation can start on a different date if a statute sets one, if the agency asks for a later date, or if OAL approves an earlier date for good cause.

Emergency regulations are for situations that need immediate action to avoid serious harm. The public has five calendar days to comment after OAL posts the proposal, and OAL decides within 10 calendar days. An approved emergency regulation usually takes effect when filed and generally lasts 180 days. It can be readopted for 90 days at a time, no more than twice. To make it permanent, the agency must complete the regular process while the emergency regulation is still in effect.

If a state agency issues or enforces a rule that should have gone through this process and did not, California calls it an "underground regulation." Agencies may not enforce one, and anyone can petition OAL to review a suspected one.

Before you act on a headline

• What is it? A bill, a signed law, a proposed rule, a final or interim final rule, guidance, a court order or a press release.
• Whose is it? Federal, California, another state, or a city or county.
• What dates does it list? Comment deadline, effective date, compliance or applicability date, later start dates, end dates.
• What has happened since? Search the Federal Register or the state register for later documents on the same rule, and check court trackers.
• How does it reach you? Through your plan, your state program, your employer or your clinic, and on what date for you.

Who to ask: your health plan's member services line about when a change applies to your plan; your county social services office about Medi-Cal; the contact named in a federal document about that document; legal aid or an attorney if you think a rule changes your rights in a dispute. The rule-status decoder lists common status labels, what each one means, and what to check next.

Sources

1. About the Federal Register — National Archives, Office of the Federal Register, accessed October 22, 2026.
2. 5 U.S.C. 553, Rule making — U.S. Code, 2023 edition, U.S. Government Publishing Office, accessed October 22, 2026.
3. 5 U.S.C. 551, Definitions — U.S. Code, 2023 edition, U.S. Government Publishing Office, accessed October 22, 2026.
4. 5 U.S.C. 705, Relief pending review — U.S. Code, 2023 edition, U.S. Government Publishing Office, accessed October 22, 2026.
5. 5 U.S.C. 706, Scope of review — U.S. Code, 2023 edition, U.S. Government Publishing Office, accessed October 22, 2026.
6. 5 U.S.C. 801, Congressional review — U.S. Code, 2023 edition, U.S. Government Publishing Office, accessed October 22, 2026.
7. 5 U.S.C. 804, Definitions (major rule) — U.S. Code, 2023 edition, U.S. Government Publishing Office, accessed October 22, 2026.
8. Document Drafting Handbook — Office of the Federal Register, August 2018 edition, Revision 2.2 dated June 2025.
9. Regulations.gov frequently asked questions — U.S. General Services Administration, eRulemaking Program, accessed October 21, 2026.
10. What is the eCFR? — Office of the Federal Register and Government Publishing Office, accessed October 22, 2026.
11. eCFR changes through time — Office of the Federal Register and Government Publishing Office, accessed October 22, 2026.
12. Congressional Review Act — U.S. Government Accountability Office, accessed October 22, 2026.
13. Medicare Program; Implementation of Sections 6219, 6220, and 6224 of the Consolidated Appropriations Act, 2026 (proposed rule) — Centers for Medicare & Medicaid Services, Federal Register, October 20, 2026 (91 FR 66408).
14. Transparency in Coverage (final rule) — Departments of the Treasury, Labor, and Health and Human Services, Federal Register, October 6, 2026 (91 FR 63748).
15. Medicaid Program; Community Engagement Requirement for Certain Individuals (interim final rule with comment period) — Centers for Medicare & Medicaid Services, Federal Register, June 3, 2026 (91 FR 33348).
16. Medicaid Program; Community Engagement Requirement for Certain Individuals (correction) — Federal Register, June 29, 2026 (91 FR 39028).
17. Perez v. Mortgage Bankers Association, 575 U.S. 92 (2015) — U.S. Supreme Court, March 9, 2015 (reproduced by Justia).
18. Trump v. CASA, Inc. (2025) — U.S. Supreme Court, June 27, 2025 (reproduced by Justia).
19. Gozlon-Peretz v. United States, 498 U.S. 395 (1991) — U.S. Supreme Court, February 19, 1991 (reproduced by Justia).
20. Glossary — California State Assembly, accessed October 21, 2026.
21. Glossary of terms — California State Senate, accessed October 21, 2026.
22. California Constitution, Article IV, Section 8 — State of California (reproduced by Justia), accessed October 22, 2026.
23. California Constitution, Article IV, Section 10 — State of California (reproduced by Justia), accessed October 22, 2026.
24. About the regular rulemaking process — California Office of Administrative Law, accessed October 21, 2026.
25. About the emergency rulemaking process — California Office of Administrative Law, accessed October 21, 2026.
26. California Regulatory Notice Register — California Office of Administrative Law, accessed October 21, 2026.
27. California Government Code § 11343.4 (effective dates of regulations) — State of California (reproduced by California.Public.Law), accessed October 22, 2026.
28. California Government Code § 11340.5 (agency rules not adopted as regulations) — State of California (reproduced by California.Public.Law), accessed October 22, 2026.
29. Underground regulations — California Office of Administrative Law, accessed October 22, 2026.