Reciprocity vs. Endorsement vs. Comity: What's the Real Difference?

The Three Words Regulators Use — And Why They Are Not Synonyms

When a licensing board says it offers "reciprocity," "endorsement," or "comity," each word implies a legally distinct process. Mixing them up is one of the most common reasons applications get delayed.

Reciprocity

True reciprocity means two states have a signed agreement to directly recognize each other's licenses for a specific profession. It is the least common pathway today because it requires both states to negotiate and maintain a bilateral agreement, and either side can withdraw from it.

Endorsement

Licensure by endorsement is the most common pathway. The receiving state reviews your existing license, verifies it through the issuing state or a national registry, and issues its own license if you meet that state's requirements — which may still include an exam, extra hours, or a fee, even though no new agreement exists between the states.

Comity

Comity is a narrower legal courtesy where a state agrees to honor another state's licensing decision as a matter of policy rather than statute. It is most common in professions with strong national accrediting bodies, and can be withdrawn more easily than a codified reciprocity law.

Why This Matters for Your Application

The pathway your target state actually uses determines what evidence you need, whether an exam is required, and how long the process takes. These three terms are used inconsistently across states — the same word can mean different things in different licensing statutes. Always confirm the specific pathway — by name, using the state's own terminology — directly with the receiving state's licensing board rather than assuming based on what a neighboring state does or what this guide's general definitions imply.