### Question
Can you define what national architecture means?


### Answer
**National architecture** is defined as the following in *23 U.S.C. § 501*:

> the common framework for interoperability that defines—


(A) the functions associated with intelligent transportation system user services

#### Citation:
  - *23 U.S.C. § 501*
  - Heading: **CHAPTER 5-RESEARCH, TECHNOLOGY, AND EDUCATION**

