Iowa Admin. Code r. 661-61.11
If a manufacturer produces a cigarette certified pursuant to this chapter and makes any change to the certified fire safe cigarette thereafter that is likely to alter the cigarette's compliance with the standards specified in this chapter, prior to the cigarette's being sold or offered for sale in this state, the manufacturer shall retest the cigarette in accordance with the testing standards specified in rule 661-61.3 (10IB) or shall propose an alternate test method and performance standard pursuant to rule 661-61.4 (101B) or rule 661-61.5(101B), and shall maintain records of the retesting as required by rule 661-61.6 (101B). Any altered cigarette that does not meet the performance standard specified in rule 661-61.3 (101B) or approved pursuant to rule 661-61.4 (101B) shall not be sold in this state.
Iowa Admin. Code r. 661-61.11