runwayinuse

Runway 4L / 22R Noise Limits & Night Prohibition KBOS local VFR procedures

Not the current flow: KBOS is on runway 33L right now (CONFIRMED). This procedure is keyed to 4L22R. Live runway detail →

Not for navigation. Verify against the official sources linked below before flight.

noise abatement Regulatory / ordinance — MANDATORY verified 2026-08-28 (42 d ago)

Compliance is required by law — federal regulation or a local ordinance with enforcement authority.

By regulation: 4L takeoffs limited to 73 dBA, 22R landings to 78 dBA, and both prohibited 2300-0600. Fines to $500 for repeat offences.

The route

  1. Takeoffs from runway 4L are limited to aircraft with a takeoff noise emission level of 73 dBA or less
  2. Landings on runway 22R are limited to aircraft with a landing noise emission level of 78 dBA or less
  3. Takeoffs on 4L and landings on 22R are prohibited between 2300 and 0600
  4. An exemption may be granted by the Executive Director under unusual operating circumstances, such as when alternative runways are closed, or to accommodate emergencies
  5. Penalties run from $50-$100 for a first offence up to $300-$500 for repeat offences within twelve months

When it applies

Source text, verbatim

740 CMR 24.05: NOISE ABATEMENT GROUND PROCEDURES
10. (a) Takeoffs from Runway 4L shall be limited to aircraft with a takeoff noise emission level of 73 dBA or less and landings on Runway 22R shall be limited to aircraft with a landing specified noise emission level of 78 dBA or less.
(b) Takeoffs on 4L and landings on 22R are prohibited between the hours of 11:00 p.m. to 6:00 a.m.
(c) An exemption from the prohibitions set forth in sections 24.05(10)(a) and/or (b) may be granted by the Executive Director under unusual operating circumstances such as when alternative runways are closed or otherwise unavailable or as required to accommodate emergencies.
24.99: PENALTIES FOR VIOLATIONS — 4. ... (a) Each offense: Not less than $50.00 and not more than $100.00. (b) First subsequent offense within 12 months: Not less than $150.00 and not more than $250.00. (c) Additional subsequent offenses within 12 months of two or more other offenses: Not less than $300.00 and not more than $500.00.

The text above is the published source wording and is authoritative over any summary on this page.

Sources

All KBOS procedures · KBOS runway in use