Right now, if foreign entities are represented by people who are in contact with public office holders, registration is mandatory. Some foreign organizations register with us themselves, insofar as they are the ones in contact with public office holders and they reach the threshold of 30 hours of lobbying per month. This applies to those who do a lot of lobbying. Organizations that do no lobbying or do less than the threshold permitted and don't have consultants are not required to register. However, technically speaking, foreign organizations that do lobby are required to register.
On October 16th, 2023. See this statement in context.