Maryland Code, Local Government § 19-304

(a)(1) A municipality may not issue bonds that mature later than 40 years after the date of issue.

(2) A municipality may not issue tax anticipation notes that mature later than 18 months after the date of issue.

(d)(1) If the charter of a municipality requires a referendum on the issuance of municipal bonds, the bonds may be issued only if the bonds are approved by a majority of voters voting on the question.

(2) If the referendum fails, another referendum may not be held on the question of issuing bonds for the same public purpose until 1 year after the election.

(1) solicits competitive bids at a public sale; and

(2) publishes notice of the bond sale: