Australia uses % BAC (grams per 100mL of blood). 0.05% is the general limit. This is consistent across all states and territories for full licence holders.

Source: Australian Government

Breathalyzers have a margin of error. Police allow for this in evidentiary testing. Personal devices are guides only. Never use a cheap keychain tester to make a decision about driving.

Source: NATA

Alcohol impairs driving well before the 0.05% limit. It reduces reaction times, vigilance, and judgment. The safest advice is: "If you drink, don't drive."

Source: TAC

In Australia, Dräger is a leading brand used by police. For personal use, AS3547 certified devices from brands like Andatech and AlcoSense offer high reliability.

Source: Choice Reviews

Eliminating a heavy drinking session takes time. If you sleep with 0.15% BAC, it can take 10+ hours to clear. Many drivers are caught "the morning after".

It's a myth that you can sober up fast. Vomiting removes unabsorbed alcohol from the stomach, but not what's in the blood. Water hydrates but doesn't "flush" alcohol faster.

An Australian Standard Drink is 10g of alcohol. This helps track consumption. 1 pot (285ml) of full-strength beer is ~1.1 standard drinks. 1 glass of wine (150ml) is ~1.4 to 1.6.

Source: Australian Govt Health

While acute effects fade, chemical traces remain. Urine tests (EtG) can detect alcohol for days. Hair testing can look back months. This is relevant for workplace testing.

Source: ADF

Alcohol laws are state-based:

• Takeaway: Often stops at 10pm or 11pm (e.g., NSW, QLD).
• Venues: Lockout laws or last drinks apply in some entertainment precincts.
• Age: Strictly 18+ nationwide.

Source: State Liquor & Gaming

The liver turns alcohol into acetaldehyde, a toxin. Chronic abuse leads to fatty liver (reversible), hepatitis, and cirrhosis (irreversible). The liver needs alcohol-free days to heal.

Source: Liver Foundation

Alcohol is a carcinogen. It increases the risk of cancers (mouth, throat, breast, liver, bowel). It also causes heart disease, brain damage, and mental health issues.

Source: NHMRC

From 0.02%, judgment relaxes. At 0.05%, reactions slow. At 0.10%, coordination fails and speech slurs. Above 0.30%, there is a risk of coma or death.

Alcohol is a depressant. While it initially relaxes, it increases anxiety and disrupts sleep long-term, creating a cycle of stress and drinking.

Source: Beyond Blue

Alcohol concentration affects you:

Mild (0.02 - 0.05%)

• Relaxation, slight judgment impairment.

Moderate (0.05 - 0.08%)

• Reduced coordination, slower reactions, impaired vision.

Severe (> 0.08%)

• Slurred speech, balance loss, confusion, nausea.
• High accident risk.

Source: ADF

Sertraline is an SSRI. Mixing it with alcohol increases drowsiness and dizziness, and can negate the medication's effect. Alcohol also worsens depression.

Source: NPS MedicineWise

If you drink to cope, drink alone, have memory blackouts, or drinking impacts your work/relationships, seek help. Services like Beyond Blue or ADF are available.

The question "When can I drive?" depends on your BAC. In Australia:

• 0.00% BAC: Mandatory for Learners (L) and Provisional (P) drivers, and bus/truck drivers.
• 0.05% BAC: The limit for full licence holders (cars/motorcycles).

Remember, BAC rises after you stop drinking. If in doubt, don't drive.

Source: Transport for NSW

The liver removes alcohol at a fixed rate of ~0.015% per hour. This starts after absorption. No "magic pill" speeds this up. Sleep doesn't speed it up, it just passes time.

Source: Alcohol and Drug Foundation

Drink driving penalties in Australia are strict:

• Low Range (0.05 - 0.079%): Fines, immediate suspension (varies by state).
• Mid Range (0.08 - 0.149%): Heavier fines, longer disqualification, interlock device.
• High Range (0.15%+): Court appearance, potential jail, long disqualification.

Source: VicRoads

Submitting to a breath test is mandatory when requested by police. Random Breath Testing (RBT) operations are common. Refusing a test is a serious offense punishable by fines and licence loss similar to high-range drink driving.

Source: NSW Police

Licence disqualification is automatic for many offenses. For serious or repeat offenses, you may face an "alcohol interlock" condition, requiring a breathalyzer in your car to start it, often for years.

Source: QLD Transport