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(3)  Where a further test undertaken in accordance with sub-paragraph (1)(a) generates a negative 
result, this paragraph applies to P from the time P  is notified of that negative result as if the 
workforce test undertaken by P in accordance with r egulation 7 had generated a negative result 
(and accordingly, from that time, P is no longer required to self-isolate). 
(4)  Paragraph 11(4) and (5) (notification of test resul ts) of Schedule 8 applies in relation to a 
further test undertaken pursuant to sub-paragraph ( 1)(a) as it applies to a test provider in relation 
to a test provided under Schedule 8. 
(5)  Where a workforce test undertaken by P in accordanc e with regulation 7 generates an 
inconclusive result, P must as soon as reasonably p racticable undertake a further workforce test 
and that further workforce test is to be treated as  a replacement workforce test within the meaning 
of regulation 7(4). 
Duties on employers 
4. —(1) An employer with more than 50 employees who is  the employer of any person who is 
required to undertake workforce tests or has respon sibility for any agency worker who is required 
to undertake workforce tests, must take reasonable steps to facilitate the taking of those tests by 
that person or agency worker in accordance with these Regulations. 
(2)  In the discharge of the duty under sub-paragraph (1 ), an employer must have regard to any 
guidance issued by the Secretary of State for the purposes of this paragraph. 
(3)  In sub-paragraph (1) an employer has responsibility for an agency worker if— 
(a)  the agency worker is supplied or to be supplied by a person (an “agent”) to the employer 
under a contract or other arrangements made between the agent and the employer; and 
(b)  the agency worker is not— 
(i)  a worker because of the absence of a worker’s contr act between the agency worker 
and the agent or the employer, or 
(ii)  a party to a contract under which the agency worker  undertakes to do the work for 
another party to a contract whose status is, by virtue of the contract, that of a client or 
customer of any profession or business undertaking carried on by the agency worker. 
 
 SCHEDULE 10 Regulation 9(16) 
Optional testing after arrival in England 
Application of this Schedule 
1.  A person who is required by regulation 9(2) to self-isolate (“P”) may undertake an appropriate 
test in the circumstances described in paragraph 4 for the purposes of determining whether they 
may cease self-isolating (as provided for in regulation 9(16)). 
Appropriate tests 
2. —(1) A test is an “appropriate test” where— 
(a)  it is a test for the detection of coronavirus; 
(b)  the manufacturer of any device used for the purpose s of the test states that the device 
has— 
(i)  a sensitivity greater than 95% (with 95% two-sided confidence interval entirely 
above 90%), 
(ii)  a specificity greater than 95% (with 95% two-sided confidence interval entirely 
above 90%),