text: declare that a state of public emergency exists. 
  
  (2) A declaration under subsection (1) of this section, if not sooner revoked, shall 
  
  cease to have effect- 
  
  (a) 
  
  in the case of a declaration made when Parliament is sitting or has been 
  summoned to meet within seven days, at the expiration of a period of seven 
  days beginning with the date of publication of the declaration; or 
  in any other case, at the expiration of a period of 21 days beginning with the 
  date of publication of the declaration, 
  
  (b) 
  
  unless before the expiration of that period, it is approved by a resolution passed by the 
  National Assembly, supported by the votes of a majority of all the voting members of the 
  Assembly. 
  
  (3) Subject to the provisions of subsection (4) of this section, a declaration 
  
  approved by a resolution of the National Assembly under subsection (2) of this section 
  shall continue in force until the expiration of a period of six months beginning with the 
  date of its being so approved or until such earlier date as may be specified in the 
  resolution: 
  
  Provided that the National Assembly may, by resolution, supported by the votes 
  
  of a majority of all the voting members of the Assembly, extend its approval of the 
  declaration for periods of not more than six months at a time. 