Okla. Stat. tit. 59, § 59-46.36
Prohibition against landscape architects bidding or
holding financial interests in bidding entities for certain
contracts.
It shall be unlawful for a landscape architect, at any time, to
bid or hold a financial interest in any entity competitively bidding
for a contract for the reparation, alteration, or erection of a
building or other structure for which he or she has prepared the
plans and specifications unless the contract is a design/build
contract.