Hazardous Materials Transportation Uniform Safety Act of 1990

[AI summary unavailable — showing source text] Hazardous Materials Transportation Safety Improvement Act of 1990 - Amends the Hazardous Materials Transportation Act to change from discretionary to mandatory the authority of the Secretary of Transportation (Secretary) to issue regulations for the safe transportation of hazardous materials in domestic and foreign commerce (including standards for route designations). Authorizes the Secretary to promulgate regulations for dispute resolution among the States or Indian tribes regarding hazardous materials highway route designations. Permits States or Indian tribes to petition for judicial review of the dispute resolution decision. Grants the Secretary discretion to either adopt or reject hazardous materials transportation standards adopted by international bodies according to the Secretary's perception of the public interest. Requires a person who offers a hazardous material for transportation in commerce to provide the carrier a shipping paper that discloses specified information on such material. Prohibits a person from altering any required marking or packaging of hazardous materials. Requires the Secretary of Labor to issue standards requiring an employer who receives a package …