preimposing

/priːɪmˈpoʊzɪŋ/
adjective
  1. Imposed or established beforehand, before a particular event or process.
    • The preimposing restrictions limited what the committee could discuss.
    • There were preimposing conditions on the loan that the borrower had to accept.
    • The preimposing rules of the contest were announced weeks in advance.