Indiana Code Title 5. State and Local Administration § 5-3-3-1

Sec. 1. In all cases in which the law provides for the publication of a legal notice or notices pertaining to public works projects in any newspaper, it shall be legal for the governmental agency or official required by law to provide for and effect publication of such legal notice or notices required by law to be published, also to make publication of such notice or notices, not to exceed three (3) times within any continuous period of twenty-one (21) days, and to incur the cost thereof at charges regularly made for the publication of classified advertising, in any highway or construction trade journal or magazine published not less often than biweekly, and having general state-wide circulation within not less than three-fourths ( 3/4 ) of the counties of the state, whenever in the judgment of such agency or official state-wide publicity for the subject matter of such notice or notices is deemed to be to the possible advantage of the affected state or local governmental agency in the more economical or efficient procurement or performance of the property, supplies, work, service or other public project which is the subject matter of such notice or notices;  provided, expressly, that such authority shall be discretionary and not required or mandatory upon any governmental agency or official.