With the exception of branches and twigs, yard waste shall be set out for collection in securely fastened bags.
Each bag shall not exceed sixty pounds (60 lbs.) in weight when filled.
Small branches and twigs shall be tied in separate bundles not to exceed four feet (4 ft.) in length, with the exception of Christmas trees which must be free of all nails, stands, bases, tinsel and ornaments.
D.C. Mun. Regs. tit. 21, r. 21-2006