; (B) standing or approaching a motor vehicle on an interstate highway; or (C) endangering the safe movement of a motor vehicle on an interstate highway. (3) Exception Paragraph (1) shall not apply to any lawful activity conducted or authorized by the United States, a State, or a political subdivision of a State. (c) Penalties (1) In general Any person who violates subsection (b) shall be fined not more than $10,000, imprisoned for not more than 15 years, or both. (2) Obstruction of emergency vehicle Any person who, in the course of violating subsection (b), knowingly obstructs the passage of an authorized emergency vehicle (as defined in section 1001.4 of title 36, Code of Federal Regulations, or any successor regulation) shall be fined not more than $15,000, imprisoned for not more than 20 years, or both. (3) Violation resulting in death Any person who commits a violation of subsection (b) that results in the death of any other person shall be fined not more than the applicable amount under paragraph (1) or (2) of this subsection, imprisoned for any term of years or for life, or both. . (b) Technical and conforming amendment The table of sections for chapter 65 of title 18, United States Code, is amended by adding at the end the following: 1370. Obstruction of interstate highways. .