The only grounds for appeal to a Commissioner are that the tribunal's decision is based on an error in law. Case R(A)1/72 lists the tests to be applied if a decision may be held to be erroneous in law-

The judgement also states that the "claimant, looking at the decision, should be able to discern on the face of it the reasons why the evidence has failed to satisfy the authority."

Apellants should take the following steps to initiate an appeal to the Commissioners.

If the chairperson refuses to give leave to appeal then application for leave to appeal can be made directly to the Commissioner. This should be done within one month of the refusal being issued. Applicants should use form OSSC1 and should enclose the tribunal decision notice, the tribunal's statement of reasons and the notice refusing leave to appeal.