52. Minors over 12 years of age are authorized to carry out tasks of a domestic nature provided that those tasks do not exceed three hours per day or hinder them from regular attendance at an educational establishment and leave them sufficient time for recreation and rest. 53. Act No. 20 of 1982 prohibits persons under the aqe of 18 from engaging in the following types of employment: (a) Employment likely to affect health Employment involving toxic substances or substances which are harmful to health. Employment at abnormal temperatures or in polluted or inadequately ventilated environments. Any employment involving minors in which harmful substances are involved. Employment in blast furnaces, smelters and forges. Employment in which they are exposed to noises of over 80 decibels. Employment involving exposure to radioactive substances, luminous paint. X-rays, ultra-violet or infra-red radiation or radio-frequency emissions. Any type of employment involving exposure to high-voltage electric current. Submarine employment. Employment on refuse dumps or in any type of activity in which harmful biological agents are produced. Employment involving the handling of explosive, inflammable or caustic substances. (b) Employment likely to be morally harmful Employment in brothels and similar establishments. Employment relating to the preparation, printing, publication, distribution and sale of immoral or indecent publications or printed matter. E/1986/4/Add.25 page 16 54. Furthermore, the same Act strictly forbids night work (defined as work between 6 p.m. and 6 a.m.) or overtime by workers who are less than 18 years of age. It should also be mentioned that the Act strictly prohibits the dismissal of under-age girls on the grounds of pregnancy. THE PROBLEM OF DRUG ADDICTION 55. The problem posed by the production and traffic of drugs such as, inter alia, marijuana, cocaine and basuco has increased throughout the country and represents a serious threat to Colombia's youth with the gravest 
**Analysis**
This text appears to be related to labor laws and regulations in Colombia, specifically focusing on the protection of minors and workers under the age of 18. It discusses the types of employment that are prohibited for minors, as well as the restrictions on their working hours and conditions. The text also mentions the problem of drug addiction, which may be related to the employment of minors.

**Category**
Employment, Health