(11) (a) "Permissible fireworks" means the following small fireworks devices designed to produce audible or visual effects by combustion, complying with the requirements of the United States consumer product safety commission as set forth in 16 CFR 1500.1 to 1500.272 and 1507.1 to 1507.12, and classified as consumer fireworks UN0336 and UN0337 pursuant to 49 CFR 172.101:
(I) Cylindrical fountains, total pyrotechnic composition not to exceed seventy-five grams each for a single tube or, when more than one tube is mounted on a common base, a total pyrotechnic composition of no more than two hundred grams;
(II) Cone fountains, total pyrotechnic composition not to exceed fifty grams each for a single cone or, when more than one cone is mounted on a common base, a total pyrotechnic composition of no more than two hundred grams;
(III) Wheels, total pyrotechnic composition not to exceed sixty grams for each driver unit or two hundred grams for each complete wheel;
(IV) Ground spinner, a small device containing not more than twenty grams of pyrotechnic composition venting out of an orifice usually in the side of the tube, similar in operation to a wheel, but intended to be placed flat on the ground;
(V) Illuminating torches and colored fire in any form, total pyrotechnic composition not to exceed two hundred grams each;
(VI) Dipped sticks and sparklers, the total pyrotechnic composition of which does not exceed one hundred grams, of which the composition of any chlorate or perchlorate shall not exceed five grams;
(VII) Any of the following that do not contain more than fifty milligrams of explosive composition:
(A) Explosive auto alarms;
(B) Toy propellant devices;
(C) Cigarette loads;
(D) Strike-on-box matches; or
(E) Other trick noise makers;
(VIII) Snake or glow worm pressed pellets of not more than two grams of pyrotechnic composition and packaged in retail packages of not more than twenty-five units;
(IX) Fireworks that are used exclusively for testing or research by a licensed explosives laboratory;
(X) Multiple tube devices with:
(A) Each tube individually attached to a wood or plastic base;
(B) The tubes separated from each other on the base by a distance of at least one-half of one inch;
(C) The effect limited to a shower of sparks to a height of no more than fifteen feet above the ground;
(D) Only one external fuse that causes all of the tubes to function in sequence; and
(E) A total pyrotechnic composition of no more than five hundred grams.
(11)(b) "Permissible fireworks" do not include aerial devices or audible ground devices, including, but not limited to, firecrackers.
https://law.justia.com/codes/colorado/2018/title-24/principal-departments/article-33.5/part-20/section-24-33.5-2001/