Part IV SMALLPOX Changes not yet applied. Later legislation changes this provision in ways not yet written into the text below: sch 4 am (E) by Public Health (Ships) 2007 reg 31 sch 4 am (heading amended, transtl provns) (W) by Public Health (Ships) 2007 regs 31, 33 AInfected ships BSuspects on other ships Part IV