43 
of crude oil based fuels to consumers in the United  Kingdom or persons carrying on 
business in the United Kingdom; and 
(b)  the activities are required to ensure continued safe operation of the facility, 
where they have travelled to the United Kingdom in the course of their work. 
(2)  For the purposes of sub-paragraph (1)— 
(a)  a facility has a capacity in excess of 20,000 tonne s at any time if it was used in the 
previous calendar year for the purposes of downstre am oil sector activities in relation to 
more than that number of tonnes of oil; 
(b)  “specified activities” are— 
(i)  storing oil, 
(ii)  handling oil, 
(iii)  the carriage of oil by sea or inland water, 
(iv)  conveying oil by pipes, 
(v)  refining or otherwise processing oil. 
29. —(1) A worker required to undertake or commence wit hin the period during which they 
would, but for this paragraph, have had to self-isolate in accordance with regulation 9— 
(a)  activities on or in relation to an offshore installation; 
(b)  activities on or in relation to upstream petroleum infrastructure; 
(c)  critical safety work on an offshore installation or  well being decommissioned or 
preserved pending demolition or reuse; or 
(d)  activities for the provision of workers, goods, mat erials or equipment or other essential 
services required to support the safe operation of the activities referred to in paragraphs 
(a) to (c), 
where they have travelled to the United Kingdom in the course of their work. 
(2)  For the purposes of sub-paragraph (1)— 
(a)  “offshore installation” has the meaning given in se ction 44 of the Petroleum Act 1998(a); 
(b)  “upstream petroleum infrastructure” has the meaning  given in section 9H of the 
Petroleum Act 1998(b); 
(c)  “well” has the meaning given in section 45A(10) of the Petroleum Act 1998(c). 
30.  A postal operator, as defined in section 27(3) of the Postal Services Act 2011(d), where they 
have travelled to the United Kingdom in the course of their work. 
31.  A worker with specialist technical skills, where t hose specialist technical skills are required 
for essential or emergency works or services (inclu ding commissioning, maintenance, and repairs 
and safety checks) to ensure the continued production, supply, movement, manufacture, storage or 
preservation of goods, where they have travelled to  the United Kingdom in the course of their 
work or otherwise to commence or resume their work. 
32.  A worker with specialist technical skills, where t hose specialist technical skills are required 
for essential or emergency works (including constru ction, commissioning, installation, 
maintenance, repairs and safety checks) or to fulfi l contractual obligations or warranty 
specifications in, or in connection with, waste man agement facilities used for the management, 
sorting, treatment, recovery, or disposal of waste (including energy from waste), where they have 
travelled to the United Kingdom in the course of their work. 
                                                                                                                                            
(a) 1998 c. 17. Section 44 was amended by paragraph 1 1 of Schedule 1 to the Energy Act 2008 (c. 32). 
(b) Section 9H was substituted by section 74(2) of th e Energy Act 2016 (c. 20). 
(c) Section 45A was inserted by section 75(1) of the Energy Act 2008. There are amendments to section 45 A(10) but none is 
relevant. 
(d) 2011 c. 5.