text: **2.**—(1) A Crown servant or government contractor where they are— 
  
  (a) required to undertake essential government work related to the United Kingdom border in 
  the United Kingdom within the period during which they would, but for this paragraph, 
  have had to self-isolate in accordance with regulation 9; or 
  
  (b) undertaking essential government work related to the United Kingdom border outside of 
  the United Kingdom but— 
  
  (i) are required to return to the United Kingdom temporarily, 
  (ii) will thereafter depart to undertake essential government work related to the United 
  
  Kingdom border outside of the United Kingdom. 
  (2) For the purposes of sub-paragraph (1) and paragraph 3— 
  
  (a) “Crown servant” has the meaning given in section 12(1)(a) to (e) of the Official Secrets 
  
  Act 1989(**a**); 
  
  (b) “essential government work” means work which has been designated as such by the 
  relevant Department or employer; 
  
  (c) “government contractor” has the meaning given in section 12(2) of the Official Secrets 
  
  Act 1989. 