Cannabis & Drug Awareness
With cannabis legalized in Canada, servers must understand how cannabis interacts with alcohol. This topic covers Ontario cannabis co-consumption rules, recognizing impairment from drugs versus alcohol, poly-substance effects, the federal Good Samaritan Drug Overdose Act, harm reduction approaches, and the legal framework for cannabis in licensed establishments.
Study Guide: Cannabis & Drug Awareness
Review these sample questions before starting the practice test.
Q1: When was recreational cannabis legalized in Canada?
- A. October 17, 2018, under the Cannabis Act ✓
- B. 2015
- C. 2020
- D. It is still illegal
Recreational cannabis was legalized in Canada on October 17, 2018, under the Cannabis Act (Bill C-45).
Q2: What is the legal age to purchase and possess cannabis in Ontario?
- A. 18
- B. 19 ✓
- C. 21
- D. 25
In Ontario, the legal age to purchase, possess, and consume cannabis is 19, the same as the legal drinking age.
Q3: Can patrons consume cannabis inside a licensed establishment in Ontario?
- A. Yes, in all licensed establishments
- B. Yes, but only edibles
- C. Only in establishments with a cannabis consumption endorsement from the AGCO ✓
- D. No, never under any circumstances
Cannabis consumption is only permitted in licensed establishments that have obtained a specific cannabis consumption endorsement from the AGCO. Most regular bars and restaurants do not allow it.
Q4: How does cannabis combined with alcohol affect impairment?
- A. They cancel each other out
- B. There is no interaction
- C. Cannabis reduces alcohol impairment
- D. Cannabis and alcohol together significantly increase impairment beyond what either substance causes alone ✓
Combining cannabis and alcohol creates synergistic impairment — the effects multiply rather than simply add. Reaction time, judgment, and coordination are far more impaired than with either substance alone.
Q5: What are common signs that a patron may be impaired by cannabis?
- A. Red or bloodshot eyes, slow reaction time, altered perception of time, giggling, and increased appetite ✓
- B. No visible signs exist
- C. Only aggression
- D. Cannabis impairment looks identical to alcohol impairment
Cannabis impairment signs include red/bloodshot eyes, slowed reactions, altered time perception, inappropriate laughter, increased appetite, dry mouth, and in some cases anxiety or paranoia.
Q6: What is a "cannabis consumption endorsement" from the AGCO?
- A. A recommendation for which strains to serve
- B. A special addition to a liquor licence that permits cannabis consumption on the licensed premises under specific conditions ✓
- C. A health warning label
- D. A type of food handling certificate
A cannabis consumption endorsement is an addition to an establishment's liquor licence from the AGCO that allows patrons to consume cannabis on the premises, subject to strict conditions.
Q7: Under Ontario law, where is cannabis smoking prohibited?
- A. Nowhere — it can be smoked anywhere
- B. Only in hospitals
- C. The same places where tobacco smoking is prohibited, plus additional locations like near schools and in cars with minors ✓
- D. Only indoors
Cannabis smoking is prohibited everywhere tobacco is banned (Smoke-Free Ontario Act) plus additional locations: within 20m of schools, playgrounds, and in vehicles with anyone under 16.
Q8: What is the maximum amount of dried cannabis an adult can possess in public in Ontario?
- A. 1 gram
- B. 15 grams
- C. Unlimited
- D. 30 grams ✓
Under the Cannabis Act, adults can possess up to 30 grams of dried cannabis (or equivalent) in public. Possession of more than 30 grams is a criminal offence.
Ready to practice all 80 questions? Start the interactive quiz below.
When was recreational cannabis legalized in Canada?
More Cannabis & Drug Awareness Questions
Ten more worked examples with answers and explanations.
Q9: How does cannabis edibles impairment differ from smoking cannabis?
- A. Edibles take longer to take effect (30 min to 2 hours) but the effects last much longer and can be more intense ✓
- B. No difference
- C. Edibles are milder
- D. Edibles take effect instantly
Edibles take 30 minutes to 2 hours to take effect because they must be digested. This delay often leads people to consume more, and the effects can be more intense and last 4-12 hours.
Q10: What should a server do if a patron arrives at the bar already impaired by cannabis?
- A. Serve them normally since cannabis is legal
- B. Monitor them closely and consider their combined impairment if they also order alcohol ✓
- C. Refuse all service immediately
- D. Ask them to prove they used cannabis legally
Just as with alcohol, you must consider total impairment. A patron already impaired by cannabis who then drinks alcohol will become significantly more impaired. Monitor closely and adjust service accordingly.
Q11: What is THC?
- A. A type of alcohol
- B. A cleaning chemical
- C. Tetrahydrocannabinol — the primary psychoactive compound in cannabis that causes impairment ✓
- D. A food additive
THC (tetrahydrocannabinol) is the main psychoactive compound in cannabis responsible for the "high" and associated impairment of judgment, coordination, and reaction time.
Q12: What is CBD and does it cause impairment?
- A. CBD is the same as THC
- B. CBD causes more impairment than THC
- C. CBD is illegal in Canada
- D. CBD (cannabidiol) is a non-psychoactive compound in cannabis that does not cause intoxication or impairment ✓
CBD (cannabidiol) is a compound in cannabis that does not produce a "high" or cause impairment. It is legal and often used for therapeutic purposes. However, products may contain both CBD and THC.
Q13: What is "poly-substance" impairment?
- A. Being impaired by a single substance in large quantities
- B. Impairment caused by combining two or more substances (e.g., alcohol + cannabis + prescription drugs) ✓
- C. A type of cocktail
- D. Only relevant to illegal drugs
Poly-substance impairment occurs when a person has consumed multiple substances. The combined effects are often unpredictable and more dangerous than any single substance, making monitoring and intervention more critical.
Q14: How does cannabis affect driving ability?
- A. It improves focus while driving
- B. It has no effect on driving
- C. Cannabis significantly impairs reaction time, coordination, attention, and judgment — making driving dangerous ✓
- D. Only high doses affect driving
Cannabis impairs reaction time, divided attention, lane tracking, and judgment. Studies show cannabis use doubles the risk of a fatal collision. It is illegal to drive while impaired by cannabis.
Q15: What is the legal THC limit for driving in Ontario?
- A. No limit exists
- B. 50 ng/mL
- C. 0.08% like alcohol
- D. 2 nanograms per millilitre of blood for a summary offence, 5 ng/mL for an indictable offence ✓
Ontario follows federal law: 2-5 ng/mL of THC in blood is a summary offence, and 5 ng/mL or more is a more serious offence. Having any THC combined with alcohol over 0.05% BAC is also an offence.
Q16: What are common signs that a patron may be impaired by stimulant drugs (cocaine, methamphetamine)?
- A. Extreme energy, rapid speech, dilated pupils, jaw clenching, agitation, and sweating ✓
- B. Sleepiness and slow speech
- C. Red eyes and giggling
- D. No visible signs
Stimulant impairment signs include heightened energy, rapid or pressured speech, dilated pupils, jaw clenching or teeth grinding, agitation, sweating, and potentially aggressive behavior.
Q17: What are common signs that a patron may be impaired by opioids (heroin, fentanyl, oxycodone)?
- A. Extreme energy and aggression
- B. Extreme drowsiness, constricted (pinpoint) pupils, slow breathing, nodding off, and slurred speech ✓
- C. Red eyes only
- D. No signs are visible
Opioid impairment presents as extreme drowsiness, very small "pinpoint" pupils, slow shallow breathing, nodding off, slurred speech, and in severe cases, blue-tinged lips (cyanosis).
Q18: Why is fentanyl particularly dangerous?
- A. It is not dangerous
- B. It only affects children
- C. It is extremely potent — even a tiny amount can cause fatal overdose, and it is often mixed into other drugs without the user's knowledge ✓
- D. It is a type of cannabis
Fentanyl is 50-100 times more potent than morphine. A dose as small as 2 milligrams can be lethal. It is often mixed into street drugs (cocaine, MDMA, fake pills) without the user knowing.
Key facts for this topic
- You must be 19 or older to buy, use, possess or grow recreational cannabis in Ontario, the same minimum age as for alcohol. Source
- Smoking or vaping cannabis is not allowed in enclosed public places and workplaces, in restaurants, on bar patios, or in public areas within 9 metres of a patio. No one may consume cannabis in a vehicle or boat that is being driven or will be driven. Source
- Ontario’s zero-tolerance rules for drivers aged 21 or under, novice drivers and commercial drivers cover cannabis as well as alcohol. Source
- The Good Samaritan Drug Overdose Act is federal law (2017). It can protect people who call 911 during an overdose from simple possession charges. Source
Common mistakes
The key error is judging a guest only by how much alcohol they have ordered. Cannabis and alcohol together impair more than either alone, edibles can take 30 minutes to 2 hours to kick in, and a guest who seems more impaired than their drink count suggests may have used cannabis, medication or other drugs. Assess total impairment and adjust service. Also keep the legal sources straight: the minimum age (19) is provincial, possession limits come from the federal Cannabis Act, and the Good Samaritan overdose law is federal, not an Ontario statute.
Keep studying
Sources
Regulatory facts on this page are based on the official sources below. If anything here disagrees with them, the official source wins.
- Government of Ontario: Cannabis laws
- Government of Ontario: Impaired driving
- Health Canada: About the Good Samaritan Drug Overdose Act
By SmartServe Prep Team Last reviewed: October 2026
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