# § 6301. Definitions
In this chapter, the following definitions apply:
**(1)** **Bureau.—** The term “Bureau” means the Bureau of Transportation Statistics established by section 6302(a).
**(2)** **Department.—** The term “Department” means the Department of Transportation.
**(3)** **Director.—** The term “Director” means the Director of the Bureau.
**(4)** **Library.—** The term “Library” means the National Transportation Library established by section 6304(a).
**(5)** **Secretary.—** The term “Secretary” means the Secretary of Transportation.
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**Source Credit**: (Added Pub. L. 112–141, div. E, title II, § 52011(a), July 6, 2012, 126 Stat. 887.)
## Statutory Notes and Related Subsidiaries
### Effective Date
Section effective , see , set out as an Effective and Termination Dates of 2012 Amendment note under , Highways.
### Construction
> **“(1)** For purposes of determining whether 1 provision of law supersedes another based on enactment later in time, a chapter 63 provision is deemed to have been enacted on the date of enactment of the corresponding section 111 provision [section 111 of this title was enacted Dec. 18, 1991].
>
> **“(2)** A reference to a section 111 provision, including a reference in a regulation, order, or other law, is deemed to refer to the corresponding chapter 63 provision.
>
> **“(3)** A regulation, order, or other administrative action in effect under a section 111 provision continues in effect under the corresponding chapter 63 provision.
>
> **“(4)** An action taken or an offense committed under a section 111 provision is deemed to have been taken or committed under the corresponding chapter 63 provision.”
, , , provided that: