text: (7) A person who has provided passenger information in advance in accordance with paragraph 
  (6) must provide evidence that they have done so if requested by an immigration officer. 
  
  (8) If passenger information changes or becomes available to a person required to self-isolate 
  during that person’s period of self-isolation that person must, as soon as reasonably possible take 
  all reasonable steps to complete a Passenger Locator Form, or a new Passenger Locator Form, as 
  the case may be. 
  
  (9) Nothing in this regulation requires a person to provide any information if that information is 
  
  not within their possession or control. 
  
  (10) Subject to paragraph (11) following are not required to comply with this regulation— 
  
  (a) a person described in regulation 9(14); 
  (b) a person described in any of paragraphs 1 to 4 of Schedule 4; 
  (c) a person described in any of paragraphs 5 to 10 of Schedule 4 who meets the condition in 
  
  paragraph 11 of that Schedule; 
  
  (d) a person described in paragraph 15 of Schedule 4. 
  
  (11) Notwithstanding paragraph (10), a person is required to comply with this regulation if 
  
  they— 
  
  (a) are a person described in paragraph (10), other than a person described in paragraph 1(1) 