"The standard percentage reduction referred to in sub-paragraph 2 [...] will not apply where the person is in receipt of a disability premium (as defined in schedule 3, part 3, paragraphs 9 and 10), or a severe disability premium (as defined in schedule 3, part 3, paragraph 11) [...]"
"A person has limited capability for work if, (a), his capability for work is limited by his physical and mental condition, and, (b), the limitation is such that it is not reasonable to require him to work."
"The applicant is not entitled to the disability premium if he has, or is treated as having, limited capability for work."