Okla. Stat. tit. 11, § 11-37-234: Limitation on suits to set aside assessments or

issuance of bonds.

No suit shall be sustained to set aside any assessment, nor to

contest the area of assessment, nor to enjoin the municipal

governing body from levying or collecting any such assessment, or

installment thereof, or interest or penalty thereon, or issuing the

bonds, or providing for their payment, or contesting the validity

thereof on any ground, unless such suit shall be commenced not more

than fifteen (15) days after the publication of the ordinance

levying assessments. After the fifteen-day period has expired, or

after the work has been completed and accepted by the municipality,

a suit may be brought only for the failure to adopt and publish the

resolution declaring the necessity for the improvement, as provided

in Sections 37-211 and 37-212 of this title, or for the failure to

give notice of the hearing interest or penalty thereon, or issuing

the bonds, or providing for their payment, or contesting the

validity thereof on any ground, unless such suit shall be commenced

not more than fifteen (15) days after the publication of the

ordinance levying assessments. After the fifteen-day period has

expired, or after the work has been completed and accepted by the

municipality, a suit may be brought only for the failure to adopt

and publish the resolution declaring the necessity for the

improvement, as provided in Sections 37-211 and 37-212 of this

title, or for the failure to give notice of the hearing on the

assessment roll, as provided in Section 37-220 of this title. In the

event any special assessment shall be found to be invalid or

insufficient, in whole or in part, for any reason whatever, the

governing body at any time, in the manner provided for levying an

original assessment, may proceed to cause a new assessment to be

made and levied which shall have like force and effect as an

original assessment.