5a47ee68_n_of_cannabis_for_personal_use_use_in_the_different_countries_Notes
[Country] Luxembourg Specifically cannabis-related offences, including use, without aggravating circumstances are punishable by fine from €250 to €2500 [Legislation] Law 19 February 1973 modified by law 27 April 2001, Art.7 [Level of prosecution] Using cannabis in front of a minor, a school or in the workplace can lead to prison sentences (from 8 days to 6 months), use with a minor also participating can lead to prison sentences from 6 month to 2 years and/or is punishable by fine from EUR 500 to EUR 25 000 Distinction by law [Notes] 
The distinction for cannabis was made in 2001 (Art7 A: other drugs, and B: cannabis and cannabis products). Before this, all drugs were treated equally.
EMCDDA | Overviews of legal topics: possession of cannabis for personal use
Notes