Missouri Revised Statutes Title XVIII. Labor and Industrial Relations § 294.040. Minors under sixteen not to work in certain occupations

(1) Any power driven machinery, except lawn and garden machinery used in domestic service at or around a private residence, provided that, there shall be an agreement between an occupant of the private residence and the child, and by no other person, firm or corporation, other than a parent, legal custodian or guardian of the child, for the performance of such work;

(2) The oiling, cleaning, maintenance, or washing of machinery;

(3) Any ladders, scaffolding, or their substitute;

(4) Any mine or quarry except in offices or at other nonhazardous employment;

(5) Stone cutting or polishing except those found in jewelry type business;

(6) Any plant manufacturing, processing, storing, or transporting Type A and B explosives, ammunition, or like materials, or in an establishment in which sales of Type A and B explosive materials make up fifty percent or more of gross sales;

(7) The operation of any motor vehicle;

(8) Any blast furnace, rolling mill, foundry, forging shop, or in any establishment where heating of metals is carried on or where cold rolling, stamping, shearing, punching, of metal stock is carried on;

(9) Saw mills, cooperage stock mills, or where woodworking machinery is used;

(10) The operation of freight elevators, hoisting machines or cranes, or on or about any manlifts;

(11) Occupations involving exposure to ionizing or nonionizing radiation or any radioactive substance;

(12) Any occupation involving exposure to any toxic or hazardous chemicals;

(13) Any capacity in or about a motel, resort, hotel, where sleeping accommodations are furnished except in offices or locations physically separated from the sleeping accommodations;

(14) Any place or establishment in which intoxicating alcoholic liquors or beverages are manufactured, bottled, stored, or sold for consumption on or off the premises, except in establishments where at least fifty percent of the gross sales consist of goods, merchandise, or commodities other than alcoholic beverages;

(15) Any other occupation or place of employment dangerous to the life, limb, health, or morals of children under the age of sixteen.