Definition
To accredit means, in legal and formal institutional contexts, to officially recognize, authorize, or certify a person or entity as meeting a required standard or possessing legitimate authority. The term carries two distinct uses in law:
1. International law (diplomatic sense): To accredit an envoy or diplomatic agent is either (a) to receive and formally recognize a foreign representative in their official capacity — the act performed by the receiving government — or (b) to commission and send a representative with formal credentials — the act performed by the sending government. Both directions of the transaction are captured by the single term.
2. Institutional/regulatory sense: To accredit an institution, program, or professional is to certify that it meets a prescribed set of standards established by a recognized accrediting body. This usage dominates modern domestic law, particularly in health care, education, and insurance regulation.
Common Language
Modern common usage (Wiktionary): To certify as meeting a predetermined standard; to send with letters of credential as a diplomatic agent; to invest with credit or authority; to ascribe or attribute.
Historical common usage (Webster's 1913): To put or bring into credit; to invest with credit or authority; to sanction; to send with letters credential as an ambassador or envoy; to believe or put trust in.
The common and legal meanings overlap substantially in the diplomatic sense — both Webster's and the legal dictionaries track the same core idea of investing with recognized authority. The meaningful gap emerges in the modern regulatory context: when lawyers and administrators today speak of "accreditation," they typically mean a structured third-party certification process with legal consequences (eligibility for Medicare reimbursement, licensure shortcuts, regulatory safe harbors). That technical, consequence-laden meaning is entirely absent from common usage and was unknown to the historical legal dictionaries.
Recognized Forms
/SUBTYPES
Diplomatic accreditation: The formal recognition of an ambassador, envoy, or other diplomatic agent by the receiving state, giving the agent official standing, privileges, and protections under international law. Letters of credence are the instrument by which this is effected.
Institutional accreditation: Certification by a recognized accrediting organization that a hospital, insurer, educational institution, or other body satisfies defined operational and quality standards. In health law, accreditation by bodies such as The Joint Commission may substitute for direct government inspection under Medicare and Medicaid "deemed status" provisions. In insurance regulation, state accreditation programs administered through the NAIC framework affect how insurers are supervised across jurisdictions.
Why It Matters in Research
Researchers working in pre-twentieth-century sources will find "accredit" used almost exclusively in the diplomatic sense. The institutional/regulatory meaning is a product of twentieth-century administrative law and does not appear in Bouvier, Burrill, Rapalje & Lawrence, or the early editions of Black's. A researcher encountering "accredit" in an 1870 treaty commentary and in a 1990 Medicare regulation is reading the same word doing entirely different legal work.
In health law research, the distinction between accreditation and licensure is operationally critical. Accreditation is private-sector certification with delegated regulatory effect; licensure is direct government authorization. The Law Mind Health Law & Bioethics Encyclopedia entry on hospital regulation addresses how "deemed status" ties accreditation outcomes to federal reimbursement eligibility — a connection invisible in any historical dictionary.
In insurance research, NAIC accreditation of state insurance departments determines whether other states defer to a domiciliary regulator's oversight. This is a regulatory architecture of considerable practical consequence for multi-state insurer research. See the Law Mind Insurance Law Encyclopedia entry for the full framework.
For diplomatic history research, note that the historical dictionaries present accreditation as a bilateral concept — both sending and receiving — but treat it asymmetrically: Bouvier emphasizes the receiving-state act; Rapalje & Lawrence and Burrill give both directions. Researchers tracing treaty negotiation records should verify which direction of the transaction is being described when the term appears without context.
Historical Dictionary Support
The four source dictionaries are in substantial agreement on the diplomatic meaning, differing mainly in emphasis and framing. Burrill offers the fullest synthesis, capturing both the trust-conferring and authority-recognizing dimensions. Bouvier is distinctive in stressing the protective function of accreditation — that recognition "becomes his protection" — which connects to the law of diplomatic immunity and makes Bouvier the most useful source for researching the consequences of accreditation rather than just its mechanics. Rapalje & Lawrence add the Latin root (accredere, to assent to) and explicitly flag both directions of the transaction with parenthetical attribution, which is useful for pinning down the term's precise meaning in a specific historical text.
None of the four dictionaries anticipates the institutional/regulatory meaning. This is not a gap unique to these sources — it reflects the state of the law at the time of their composition. Researchers should not read absence of the regulatory meaning as evidence that such accreditation lacked legal significance in a modern context; it simply had not yet emerged as a legal category.
Jurisdictional Note
Diplomatic accreditation is governed by international law and treaty, most comprehensively by the Vienna Convention on Diplomatic Relations, and is uniform in structure across jurisdictions. Institutional accreditation is highly jurisdiction-specific in its legal consequences: deemed status provisions, licensure reciprocity, and regulatory deference vary by state and federal program. Research into accreditation's legal effects must be anchored to the specific regulatory regime at issue.
Encyclopedia Cross-Reference
Hospital Regulation — Conditions of Participation, Accreditation, and Certificate of Need (Law Mind Health Law & Bioethics Encyclopedia)
NAIC — Model Laws, Accreditation, and the Role of the National Association of Insurance Commissioners (Law Mind Insurance Law Encyclopedia)