Legal research for Washington, DC law firms - local courts, the D.C. Circuit and M.A.P. v. Ryan

Short answer: Washington, DC has two separate court systems. The local courts are the D.C. Superior Court (trial) and the D.C. Court of Appeals (highest local court). The federal courts are the U.S. District Court for D.C. and the D.C. Circuit. Under M.A.P. v. Ryan, D.C. Circuit decisions issued before February 1, 1971 still bind the D.C. Court of Appeals; later ones are persuasive only.

DC's courts

Which D.C. Circuit decisions bind local courts

Before 1971, the D.C. Circuit was effectively DC's highest local court. In M.A.P. v. Ryan, 285 A.2d 310 (D.C. 1971), the D.C. Court of Appeals held that D.C. Circuit decisions issued before February 1, 1971 are binding on it, while later D.C. Circuit decisions on local law are persuasive. So older D.C. Circuit cases can still control a Superior Court matter on DC law.

Citations and statutes

D.C. Court of Appeals decisions appear in the Atlantic Reporter (A.3d). The D.C. Code is published online by the Council of the District of Columbia at code.dccouncil.gov, along with the D.C. Municipal Regulations.

For federal agency matters, research often starts with the statute and regulations, then D.C. Circuit decisions on the agency's interpretation.

A fact-first workflow

DC practice mixes local litigation (landlord-tenant, personal injury, employment under the D.C. Human Rights Act) with federal administrative and employment work.

1. Describe the facts in plain English. Example: "A federal contractor's employee in DC was moved to a lower-paying role after asking for a schedule change to care for a parent. The employer cites a reorganization."
2. Choose the system: DC local law, federal law, or both.
3. Read the closest decisions first, noting whether a D.C. Circuit decision predates February 1, 1971.
4. Check treatment before relying on any decision.
5. Read the statute at issue in its official text.

LegiMatch returns up to 100 similar decisions for each matter, ranked by a match score that shows how much facts, legal issues, statutes, jurisdiction and recency contributed. Every result is a real decision linked to the court's text. It supports your research and doesn't give legal advice.

Frequently asked questions

Is the D.C. Court of Appeals the same as the D.C. Circuit?

No. The D.C. Court of Appeals is the District's highest local court. The D.C. Circuit is a federal court of appeals.

Are D.C. Circuit decisions binding in D.C. Superior Court?

On DC local law, only those issued before February 1, 1971 bind the D.C. Court of Appeals (and so the Superior Court), under M.A.P. v. Ryan. Later ones are persuasive.

Where can I read the D.C. Code for free?

On the Council of the District of Columbia's official site, code.dccouncil.gov.

Sources

• M.A.P. v. Ryan, 285 A.2d 310 (D.C. 1971)
• District of Columbia Courts (dccourts.gov)
• Council of the District of Columbia, D.C. Code (code.dccouncil.gov)
• United States Courts, court locator (uscourts.gov)