Pub. L. 90-596, tit. III, sec. 304

Sec. 304. Each owner of property abutting public space in which a vault is located shall pay an annual rent fixed from time to time by the District of Columbia Council for such vault, but such annual rent shall not be less than $10, and such rent shall be subject to collection from said owner in the manner prescribed by this title, regardless of whether any use is made of such vault, and regardless of the extent of any use: Provided, That no lent for any rental year for a vault shall be charged to the owner of abutting property if said owner, prior to July 1 of such year, has notified the Commissioner in writing that he has abandoned such vault and has performed such work as may be required by the District in connection with the sealing of!’ or filling of such vault, or both.