"The main drug law in Portugal is Decree Law 15/93 of 22 January 1993, which defines the legal regime applicable to the trafficking and consumption of narcotic drugs and psychoactive substances. Law 30/2000, adopted in November 2000 but in place since July 2001, decriminalised consumption, acquisition and possession of drugs for personal consumption.

"A regulation sets out maximum amounts of drugs in grams, these amounts being estimates of the average required for 10 days’ consumption. A person caught using or possessing less than the maximum amount of a drug for personal use, where there is no suspicion of involvement in drug trafficking, will be evaluated by the local Commission for Dissuasion of Drug Addiction, composed of three members, two being medical doctors, psychologists, sociologists or social workers and the third being a legal expert. Punitive sanctions can be applied, but the main objectives are to explore the need for treatment and to promote healthy recovery.

"Drug trafficking may incur a sentence of 1-5 or 4-12 years’ imprisonment, depending on specific criteria, one of which is the nature of the substance supplied. The penalty is reduced for users who sell drugs to finance their own consumption.

"Decree Law 54/2013 prohibits the production, export, advertisement, distribution, sale or simple dispensing of new psychoactive substances (NPS) named in the list accompanying the Decree Law and sets up a control mechanism for NPS. Administrative sanctions, including fines of up to EUR 45,000, can be imposed for offences under this law, while a person caught using NPS but who is not suspected of having committed another offence is referred to the local Commission for
Dissuasion of Drug Addiction.

Source

European Monitoring Centre for Drugs and Drug Addiction (2019), Portugal: Country Drug Report 2019, Publications Office of the European Union, Luxembourg.