49 CFR 193.2009
§ 193.2009 Rules of regulatory construction.
United States · 49 CFR — Transportation · Status: effective
Cite this
- Citation
- 49 CFR 193.2009, § 193.2009 Rules of regulatory construction, United States, version 1 as recorded 2026-07-09, yourstate.us, https://yourstate.us/provision/257307
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Full text
(a) As used in this part:
(1) Includes means including but not limited to;
(2) May means is permitted to or is authorized to;
(3) May not means is not permitted to or is not authorized to; and
(4) Shall or must is used in the mandatory and imperative sense.
(b) In this part:
(1) Words importing the singular include the plural; and
(2) Words importing the plural include the singular.
Legislative history
This is a federal regulation, adopted through agency rulemaking under the Administrative Procedure Act — not enacted by a recorded vote of Congress.