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The assessment of the abuse potential of CNS-active drugs is a regulatory requirement. Drug discrimination is one of the nonclinical tests that contribute to this assessment by providing information on a drugs potential to induce a discriminative stimulus comparable to that of a known drug of abuse. The objective was to validate drug discrimination in the rat for the purpose of supporting regulatory submissions for novel drugs with potential cannabinoid-like activity. Ten female Lister hooded rats were trained to discriminate no-drug from Δ Pharmacological specificity was demonstrated by achieving the anticipated dose-response curve for Δ Based on the literature review performed in light of the results obtained, contrasting and unpredictable behavioural responses produced by cannabinoids in animals and humans raises the question of the reliability and relevance of including drug discrimination and self-administration studies within an abuse potential assessment for novel cannabinoid-like drugs.