Transportation of mail by vessel as freight or express

§ 6410. Transportation of mail by vessel as freight or express The Postmaster General may require that mail be transported as freight or express when— (1) there is no competition on a water route and the rate of compensation asked is excessive; or (2) no proposal is received. A common carrier by water that refuses to transport the mail when required to do so under this section shall be fined not more than $500 for each day of refusal.