Up to 50 people may attend a funeral or memorial service, according to this information on the NSW Government's website, particularly

attending funeral 320pxThe limit to the number of people who may attend includes adults and children and excludes the people necessary to conduct the service or assist in the conduct of the service such as the funeral director and their staff.

People attending the service will be required to supply their name and contact details so that they can be used for contact tracing.

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See also