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Master Contracts and Riders

What is the difference between a Master Contract and a Rider?

The Master Contract describes the general terms and conditions of the agreement between your company and GATX, including where railcars can be used, maintenance responsibility, tax and liability issues defined by the type of lease.


A Rider is an attachment to the Master Contract specifically defining any additional agreements between your company and GATX pertaining to a particular group of railcars, including the rent and term of the lease of those cars.


Generally, GATX customers have only one Master Contract, but many Riders may be attached to it. Remember, what is written in specific contracts and riders always takes precedence over general terms or explanations provided in our Customer Care overview.