Amends GS 143-129, regarding procedure for letting of public contracts. Regarding contracts to be let by a political subdivision, requires proposals to be invited by standard mail or email notification to persons or businesses located within the respective jurisdictional boundaries if the person or business requested notices for the type of work being bid, in addition to the existing newspaper advertisement requirements for proposal invitations, if the work is estimated to be $50,000 or more. Requires approval by the respective governing board prior to sending email notifications. Makes the guidelines regarding timing and content for advertisements also applicable to mail or email notifications. Effective October 1, 2021.