Choking someone is now its own criminal offence and removing a condom during sex without consent is illegal under new Tasmanian laws.
The changes passed both houses of state parliament on Thursday in a move announced in June 2021.
The laws on non-fatal strangulation, choking and suffocation bring Tasmania into line with the rest of the country.
"(It) is a significant form of violence, which can be a precursor for escalation in the severity of family violence," Attorney-General Elise Archer said in a statement.
Changes have also been made to the definition of consent to add what is commonly termed "stealthing" - the removal of a condom without a person's agreement.
"That will help educate the public, discourage would-be offenders, and encourage complaints and prosecutions for sexual offences such as rape," Ms Archer said.