What is an SFAR?
A Special Federal Aviation Regulation (SFAR) is a temporary, geographically-bounded rule issued by the US Federal Aviation Administration. SFARs are codified in Title 14 of the Code of Federal Regulations (14 CFR) and carry the force of binding law on US civil operators. Unlike EASA's advisory CZIBs, an SFAR is mandatory — US-registered aircraft, US carriers, and foreign aircraft operating under exemption are legally prohibited from entering the restricted airspace until the SFAR is amended, lifted, or expired.
SFARs were first widely used after the Iran hostage crisis (1980) to restrict US operations over Iranian airspace. The modern SFAR catalog grew significantly after the 2014 MH17 incident, the 2020 PS752 shoot-down, and the 2022 invasion of Ukraine. Each SFAR specifies the restricted area in geographic or FIR-level terms, lists categories of operators affected, and details the conditions under which exemptions may be granted (typically humanitarian, diplomatic, or overflight-only).
SFAR vs CZIB — the regulatory distinction
EASA CZIBs are advisory — airlines that operate contrary still face increased liability and insurance scrutiny, but no legal prohibition. FAA SFARs are mandatory — violation is a federal regulatory offense. This is why an FIR can carry both a CZIB and an SFAR simultaneously, and why some airspace effectively closes to US carriers while remaining open (with operator risk assessment) to European carriers.
Key facts
- •SFARs are codified at 14 CFR — they have the force of binding US federal regulation.
- •The FAA maintains a current list at faa.gov; updates are published in the Federal Register.
- •Active SFARs as of 2026 cover Iran (FIR OIIX), parts of Iraq, Yemen, Libya, Syria, Somalia, North Korea, Cuba (restricted), Russia and Belarus (post-2022), and Venezuela (since 2019).
- •Each SFAR has an expiration date and must be re-issued or extended through formal rulemaking; the FAA typically renews active SFARs in 2-3 year cycles.