"This means you may have to be inventive for what positions and activities you undertake as you will not be able to kiss or be within the moist breath zone."
There was also a reminder that staff and clients should record visits by QR code or manual register.
"If you are working from home, or going on outcalls, you must keep a record of who you see (and their address if it is an outcall), and you must wear a mask at all times," the NZPC said.
The term "moist breath zone" has been floating around since last year, when it hit the headlines after a New Zealand primary school teacher penned a catchy tune to help children learn correct physical distancing.
Sex workers in New Zealand reported earlier in the outbreak that there had been a drop in demand, compared to previous outbreaks, perhaps due to greater concerns about the Delta variant's transmissibility.
Dame Catherine Healy of Aotearoa New Zealand Sex Workers' Collective said the more common problem in the last lockdown was clients pestering sex workers to flout rules and meet in person, but Healy said she'd received fewer such complaints lately.
Sometimes, sex workers placed ads on escort websites before lockdowns were activated, and there was a lag before those ads were removed, she said.