nonretroactive

/ˌnɑnrɛtroʊˈæktɪv/
adjective
  1. Not applying to or affecting past events; effective only from the present time forward.
    • The new tax law is nonretroactive, so it only applies to income earned after January 1st.
    • The school's nonretroactive policy meant that students who graduated before the change were not affected.
    • Our contract is nonretroactive, meaning the new rules don't change what happened last month.
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