text: (3) For the purposes of sub-paragraph (1)(d) and (e), a person or laboratory (as the case may be) 
  meets the relevant requirements for accreditation to a standard where the person who is the 
  operator of the laboratory complies with the requirements of regulation 6 of the Health Protection 
  (Coronavirus, Testing Requirements and Standards) (England) Regulations 2020 as if— 
  
  (a) a reference to an applicable test were a reference to a day 8 test; 
  (b) a reference to a test provider were a reference to a private provider. 
  
  **Required circumstances for undertaking a day 2 test or a day 8 test**
  
  **10.**—(1) The circumstances mentioned in regulation 6(12)(a) and (b) are as follows. 
  (2) In relation to— 
  
  (a) a day 2 test, P undertakes the test no later than the end of the second day after the day on 
  which P arrived in England; 
  
  (b) a day 8 test, P undertakes the test no earlier than the end of the seventh day after the day 
  
  on which P arrived in England. 
  
  (3) Subject to sub-paragraph (4), at the time the test is booked P notifies the test provider that P 
  is to undertake the test under these Regulations, and provides the test provider with— 
  
  (a) the information set out in paragraph 4(b)(i) to (v) and (vii) to (xiii) of Schedule 10; and 
  
  (b) their home address, and— 
  
  (i) where P is a person to whom regulation 9(1)(a) or (b) applies, the address or 
  addresses at which they intend to self-isolate, or are self-isolating, in accordance 
  with regulation 9 (if different from their home address), or 
  
  (ii) where P is a person to whom regulation 10 applies, the address of the 
  accommodation designated for the purposes of Schedule 11. 
  
  (4) Where P is a child, or a person with a disability who is unable for that reason to provide the 
  
  notification and information set out or referred to in sub-paragraph (3) to the test provider— 
  
  (a) the notification and information set out or referred to in sub-paragraph (3), other than the 
  information set out in paragraph 4(b)(xi) and (xii) of Schedule 10, is provided to the test 
  provider on P’s behalf by another person (“Y”); and 
  
  (b) either the information set out in paragraph 4(b)(xi) and (xii) of Schedule 10 is provided 
  by Y to the test provider or, where appropriate, Y provides their own telephone number 
  and email address to the test provider. 
  
  (5) At the time the test is booked and payment made the test provider gives P a test reference 
  number in the format specified in sub-paragraph (6) and, where appropriate, also provides that test 
  reference number to Y. 
  
  (6) A test reference number must consist of 12 characters comprising 5 letters followed by 7 
  
  digits. 