# 49 CFR § 1542.107: Changed conditions affecting security

> Federal · Regulations · In force

URL: https://www.frixlaw.com/law-library/statutes/ecfr-49-1542.107

## Section

- **Citation:** 49 CFR § 1542.107
- **Heading:** Changed conditions affecting security
- **Jurisdiction:** Federal
- **Kind:** Regulations
- **Status:** In force
- **Text as of:** September 22, 2026
- **Source:** Publisher's official text
- **Location:** Title 49—Transportation > Subtitle B—Other Regulations Relating to Transportation > CHAPTER XII—TRANSPORTATION SECURITY ADMINISTRATION, DEPARTMENT OF HOMELAND SECURITY > SUBCHAPTER C—CIVIL AVIATION SECURITY > PART 1542—AIRPORT SECURITY > Subpart B—Airport Security Program

## Text

(a) After approval of the security program, each airport operator must notify TSA when changes have occurred to the—
(1) Measures, training, area descriptions, or staffing, described in the security program;
(2) Operations of an aircraft operator or foreign air carrier that would require modifications to the security program as required under § 1542.103; or
(3) Layout or physical structure of any area under the control of the airport operator, airport tenant, aircraft operator, or foreign air carrier used to support the screening process, access, presence, or movement control functions required under part 1542, 1544, or 1546 of this chapter.
(b) Each airport operator must notify TSA no more than 6 hours after the discovery of any changed condition described in paragraph (a) of this section, or within the time specified in its security program, of the discovery of any changed condition described in paragraph (a) of this section. The airport operator must inform TSA of each interim measure being taken to maintain adequate security until an appropriate amendment to the security program is approved. Each interim measure must be acceptable to TSA.
(c) For changed conditions expected to be less than 60 days duration, each airport operator must forward the information required in paragraph (b) of this section in writing to TSA within 72 hours of the original notification of the change condition(s). TSA will notify the airport operator of the disposition of the notification in writing. If approved by TSA, this written notification becomes a part of the airport security program for the duration of the changed condition(s).
(d) For changed conditions expected to be 60 days or more duration, each airport operator must forward the information required in paragraph (b) of this section in the form of a proposed amendment to the airport operator's security program, as required under § 1542.105. The request for an amendment must be made within 30 days of the discovery of the changed condition(s). TSA will respond to the request in accordance with § 1542.105.

## Nearby sections

- [49 CFR § 1542.1 § 1542.1 Applicability of this part.](https://www.frixlaw.com/law-library/statutes/ecfr-49-1542.1.md)
- [49 CFR § 1542.3 § 1542.3 Airport security coordinator.](https://www.frixlaw.com/law-library/statutes/ecfr-49-1542.3.md)
- [49 CFR § 1542.101 § 1542.101 General requirements.](https://www.frixlaw.com/law-library/statutes/ecfr-49-1542.101.md)
- [49 CFR § 1542.103 § 1542.103 Content.](https://www.frixlaw.com/law-library/statutes/ecfr-49-1542.103.md)
- [49 CFR § 1542.105 § 1542.105 Approval and amendments.](https://www.frixlaw.com/law-library/statutes/ecfr-49-1542.105.md)
- [49 CFR § 1542.107 § 1542.107 Changed conditions affecting security.](https://www.frixlaw.com/law-library/statutes/ecfr-49-1542.107.md)
- [49 CFR § 1542.109 § 1542.109 Alternate means of compliance.](https://www.frixlaw.com/law-library/statutes/ecfr-49-1542.109.md)
- [49 CFR § 1542.111 § 1542.111 Exclusive area agreements.](https://www.frixlaw.com/law-library/statutes/ecfr-49-1542.111.md)
- [49 CFR § 1542.113 § 1542.113 Airport tenant security programs.](https://www.frixlaw.com/law-library/statutes/ecfr-49-1542.113.md)
- [49 CFR § 1542.201 § 1542.201 Security of the secured area.](https://www.frixlaw.com/law-library/statutes/ecfr-49-1542.201.md)
- [49 CFR § 1542.203 § 1542.203 Security of the air operations area (AOA).](https://www.frixlaw.com/law-library/statutes/ecfr-49-1542.203.md)
- [49 CFR § 1542.205 § 1542.205 Security of the security identification display area (SIDA).](https://www.frixlaw.com/law-library/statutes/ecfr-49-1542.205.md)
- [49 CFR § 1542.207 § 1542.207 Access control systems.](https://www.frixlaw.com/law-library/statutes/ecfr-49-1542.207.md)
- [49 CFR § 1542.209 § 1542.209 Fingerprint-based criminal history records checks (CHRC).](https://www.frixlaw.com/law-library/statutes/ecfr-49-1542.209.md)

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Source: Frix Law Library, https://www.frixlaw.com/law-library/statutes/ecfr-49-1542.107. Check the current official text before relying on it. Not legal advice.