No marker or monument of a type used exclusively by the Office of the Surveyor shall be used by a Registered Land Surveyor.
No marker or monument of the Office of the Surveyor shall be removed by a Registered Land Surveyor without approval by the D.C. Surveyor.
With the exception of drill holes and cross cuts in masonry, points set by the Registered Land Surveyor shall be appropriately tagged with the registration number.
D.C. Mun. Regs. tit. 10, r. 10-B2813