§ 1500.5 Rules of construction.

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Title 49—Transportation > Subtitle B—Other Regulations Relating to Transportation > CHAPTER XII—TRANSPORTATION SECURITY ADMINISTRATION, DEPARTMENT OF HOMELAND SECURITY > SUBCHAPTER A—ADMINISTRATIVE AND PROCEDURAL RULES > PART 1500—APPLICABILITY, TERMS, AND ABBREVIATIONS

This text was captured on Sep 22, 2026. It is a snapshot, not a live feed, so check the official code before relying on it.

Text

(a) In this chapter, unless the context requires otherwise:

(1) Words importing the singular include the plural.

(2) Words importing the plural include the singular.

(3) Words importing the masculine sex include the feminine.

(b) In this chapter, the word:

(1) “Must” is used in an imperative sense;

(2) “May” is used in a permissive sense to state authority or permission to do the act prescribed, and the words “no person may * * *” or “a person may not * * *” mean that no person is required, authorized, or permitted to do the act prescribed; and

(3) “Includes” means “includes but is not limited to”.

[67 FR 8351, Feb. 22, 2002, as amended at 90 FR 21690, May 21, 2025]

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