CIOL's Interpreting and Translating Division, in consultation with legal advice drafted specimen contract / job agreements for CIOL members to use in conjunction with the model terms of business.
The documents covers the type(s) of service you will be supplying and in which language pair, plus other key details such as, for example, when the engagement will take place and the agreed fee.
In addition to issuing a contract or job agreement, it is important to specify terms of business (terms and conditions) to ensure there are no uncertainties or misunderstandings between you and your client. The model terms of business can easily be tailored to meet your own individual business needs.
It is also good practice to supply your client with a copy of (or link to) CIOL's Code of Professional Conduct. The code should always be made available should your client request it.
CIOL also strongly recommends that members seek protection against litigation and consider Professional Indemnity Insurance as needed as here.