<P> Congress passed a minor amendment to the Act in 1903 , the Elkins Act . Major amendments were enacted in 1906 and 1910 . The Hepburn Act of 1906 authorized the ICC to set maximum railroad rates , and extended the agency 's authority to cover bridges , terminals , ferries , sleeping cars , express companies and oil pipelines . The Mann - Elkins Act of 1910 strengthened ICC authority over railroad rates and expanded its jurisdiction to include regulation of telephone , telegraph , and cable companies . The Valuation Act of 1913 required the ICC to organize a Bureau of Valuation that would assess the value of railroad property . This information would be used to set freight shipping rates . </P>
<P> Congress passed a minor amendment to the Act in 1903 , the Elkins Act . Major amendments were enacted in 1906 and 1910 . The Hepburn Act of 1906 authorized the ICC to set maximum railroad rates , and extended the agency 's authority to cover bridges , terminals , ferries , sleeping cars , express companies and oil pipelines . The Mann - Elkins Act of 1910 strengthened ICC authority over railroad rates and expanded its jurisdiction to include regulation of telephone , telegraph , and cable companies . The Valuation Act of 1913 required the ICC to organize a Bureau of Valuation that would assess the value of railroad property . This information would be used to set freight shipping rates . </P>
list one of the significant changes of the conception of interstate commerce
list one of the significant changes of the conception of interstate commerce
regulation of telephone , telegraph , and cable companies
regulation of telephone , telegraph , and cable companies