Severe disablement occupational allowance
16. Where a disabled person is in receipt of an allowance for constant attendance at a rate increased under the proviso to Article 14, he may be awarded an allowance at the rate specified in Schedule 3, paragraph 5, for any period during which he is, in the opinion of the Secretary of State, ordinarily employed in a gainful occupation, not being a period in respect of which he is eligible for an award under Article 18(1)(i) or is in receipt of any personal benefit under Chapters I to III of Part II of the Social Security Act 1975 or the corresponding provisions of the Social Security (Northern Ireland) Act 1975, by way of retirement pension, invalidity pension and allowance, non-contributory invalidity pension, invalid care allowance, or Category A or B retirement pension as provided for by regulation 18 of the Social Security (Widow's Benefit, Retirement Pensions and Other Benefits) (Transitional) Regulations 1979 or by corresponding regulations made in Northern Ireland, or any benefits similar to the aforesaid benefits under the law of any place outside the United Kingdom which in the opinion of the Secretary of State is analogous to the first-mentioned Act of 1975.