Idaho Code § 54-1927
Every claimant who has furnished labor or material or rented, leased, or otherwise supplied equipment in the prosecution of the work provided for in such contract in respect of which a payment bond is furnished under this act, and who has not been paid in full therefor before the expiration of a period of ninety (90) days after the day on which the last of the labor was done or performed by him or material or equipment was furnished or supplied by him for which such claim is made, shall have the right to sue on such payment bond for the amount, or the balance thereof, unpaid at the time of institution of such suit and to prosecute such action to final judgment for the sum or sums justly due him and have execution thereon; provided, however, that any such claimant having a direct contractual relationship with a subcontractor of the contractor furnishing such payment bond but no contractual relationship expressed or implied with such contractor shall not have a right of action upon such payment bond unless he has given written notice to such contractor within ninety (90) days from the date on which such claimant performed the last of the labor or furnished or supplied the last of the material for which such claim is made, stating with substantial accuracy the amount claimed and the name of the person to whom the material or equipment was furnished or supplied or for whom the labor was done or performed. Each notice shall be served by mailing the same by registered or certified mail, postage prepaid, in an envelope addressed to the contractor at any place he maintains an office or conducts his business or at his residence.
The contracting body and the agent in charge of its office, is authorized and directed to furnish, to anyone making application therefor who submits an affidavit that he has supplied labor, equipment, or materials for such work and payment therefor has not been made or that he is being sued on any such bond, or that it is the surety thereon, a certified copy of such bond and the contract for which it was given, which copy shall be prima-facie evidence of the contents, execution, and delivery of the original. Applicants shall pay for such certified copies such reasonable fees as the contracting body or the agent in charge of its office fixes to cover the actual cost of the preparation thereof.
Every suit instituted on the aforesaid payment bond shall be brought in appropriate court in any county in which the contract was to be performed and not elsewhere; provided, however, that no such suit shall be commenced after the expiration of one (1) year from the date on which the claimant performed the last of the labor or furnished or supplied the last of the material or equipment for which such suit is brought, except, that if the claimant is a subcontractor of the contractor, no such suit shall be commenced after the expiration of one (1) year from the date on which final payment under the subcontract became due.
Idaho Code § 54-1927