36 
(i)  are required to return to the United Kingdom temporarily, 
(ii)  will thereafter depart to undertake essential gover nment 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 be en designated as such by the 
relevant Department or employer; 
(c)  “government contractor” has the meaning given in se ction 12(2) of the Official Secrets 
Act 1989. 
3. —(1) A person who is a Crown servant, a government contractor, or a member of a visiting 
force, who— 
(a)  is required to undertake work necessary to the delivery of essential defence activities; 
(b)  has travelled from a point of origin within the com mon travel area or from a category 1 
country or territory on a vessel or aircraft operat ed by, or in support of, Her Majesty’s 
armed forces or by, or in support of, a visiting fo rce and that vessel or aircraft has not 
taken on any persons, docked in any port or landed in any category 2 country or territory; 
or 
(c)  has undertaken a continuous period of at least 10 d ays ending with the day immediately 
preceding the day of their arrival in the United Kingdom aboard a vessel operated by or in 
support of Her Majesty’s Naval Service or by, or in  support of, a visiting force, where 
they have not disembarked and that vessel has not t aken on any persons or docked in any 
port outside of the common travel area for a period of at least 10 days ending with the day 
of its arrival in the United Kingdom. 
(2)  For the purposes of sub-paragraph (1)— 
(a)  “defence” has the meaning given in section 2(4) of the Official Secrets Act 1989; 
(b)  “visiting force” means any body, contingent or deta chment of the forces of a country, 
being a body, contingent or detachment for the time being present in the United Kingdom 
(including United Kingdom territorial waters), on t he invitation of Her Majesty’s 
Government in the United Kingdom. 
4.  An official of a foreign Government, required to t ravel to the United Kingdom to undertake 
essential border security duties, or a contractor d irectly supporting these essential border security 
duties where— 
(a)  they are in possession of a written notice signed b y a senior member of their foreign 
Government confirming that they are required to und ertake essential border security 
duties in the United Kingdom within the period duri ng which they would, but for this 
paragraph, have had to self-isolate in accordance w ith regulation 9 and that that work 
cannot be undertaken whilst the person is complying with regulation 9; or 
(b)  their deployment is pursuant to a standing bilatera l or multilateral agreement with Her 
Majesty’s Government on the operation of the Border  controls within the United 
Kingdom. 
                                                                                                                                            
(a) 1989 c. 6. Section 12 was amended by paragraph 22  of Schedule 10 to the Reserve Forces Act 1996 (c. 14), by paragraph 30 
of Schedule 12 to the Government of Wales Act 1998 (c. 38), by paragraph 26 of Schedule 8 to the Scotl and Act 1998 (c. 
46), by paragraph 9(3) of Schedule 13 to the Northe rn Ireland Act 1998 (c. 47), by paragraph 9 of Sche dule 6 to the Police 
(Northern Ireland) Act 2000 (c. 32), by paragraph 6  of Schedule 14 to the Energy Act 2004 (c. 20), by paragraph 58 of 
Schedule 4 to the Serious Organised Crime and Polic e Act 2005, by paragraph 34 of Schedule 10, and par agraph 1 of 
Schedule 12, to the Government of Wales Act 2006 (c. 32) and by paragraph 36 of Schedule 8 to the Crim e and Courts Act 
2013 (c. 22).