This section is specific to the new service agreement provision—the right to ask a railway for one—but that provision makes a reference back to service obligations as being the service obligations in the common carrier obligations. So this would essentially be changing the definition.
In terms of what “adequate and suitable” means, there's a lot of jurisprudence regarding “adequate and suitable”, and certainly in practice, consideration has been given to providing service that meets the needs of the shippers and also reflects the railways' overall operations. There have been discussions with shippers on this concept of making shippers' needs paramount, so there would be a change in the current standard of service under the act.