Contracts for waste removal may be oral or in writing. 

Oral Contracts

An oral contract may be terminated at will by the customer and upon 14 days' written notice by the carter. 

Written Contracts

A written contract for the removal, collection, or disposal of trade waste cannot be longer than 2 years in term. A written contract that contains no provision regarding duration can be terminated at will by the customer and upon 14 days written notice by the carter. The carter must offer a copy of the contract containing the terms and conditions to the customer within 40 days of the start of the waste removal service. The customer has the right to negotiate any terms and conditions in the contract before signing. Any changes to the terms of the written contract must be made in writing and signed by both the customer and the carter.