Weed-check, based on Adolescent Cannabis Check-Up (ACCU), is a brief intervention intended to supplement other harm reduction programs focusing on cannabis use.

Through Weed-check, addiction recovery professionals are trained in discussing cannabis use with adolescents with the aim of reducing or eliminating their cannabis use. An evaluation study on Weed-check was conducted via the addiction services Brijder, Maliebaan, Iriszorg, Jellinek, Novadic Kentron, Tactus, and Mondriaan.