South Coast Police District Commander Superintendent Greg Moore said the extra officers will undertake public health order enforcement efforts across the state, with one of the key focuses being to prevent movement to regional areas from Sydney, and between regional areas.

"We will have a significant highway presence," Mr Moore said.

"You will see more of our cars and officers out on the major roads.

"But it won't just be the highways, it will be the major arterial roads and the backroads.

"We will also be conducting frequent patrols of traveller rest sports and transport hubs."

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Across the state, Operation Stay at Home will utilise resources from all police districts and police area commands under Metropolitan and Regional Field Operations alongside officers attached to Traffic and Highway Patrol Command, Police Transport Command, Dog and Mounted Unit, and a number of other specialist commands as required.

Significantly, 1400 officers attached to Traffic and Highway Patrol Command will be dedicated to both static and mobile COVID-19 compliance operations on the state's roads.

Mr Moore said officers would also be "checking up on people they know are required to stay at home, due to being close contacts or otherwise."

"If we all work closely together we can keep the community safe," he said.

"I acknowledge the support of the community in abiding by the health orders at this point."

Although none will be based in the Shoalhaven or on the South Coasta further 500 Australian Defence Force troops will be brought in to assist, in addition to the 300 already working alongside NSW Police.

Deputy Commissioner Mal Lanyon, Metropolitan Field Operations, said the operation would see police utilising some of the strongest powers they have ever been given.

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"The level of non-compliance by some members of the community is unacceptable and we will be doubling down with compliance and enforcement to make sure we get ahead of the Delta strain," Deputy Commissioner Lanyon said.

"It only takes one person to do the wrong thing to facilitate considerable spread of the virus.

"We will be issuing $5000 fines to people and closing any businesses which continue to breach the health orders, and will not apologise for these increased enforcement efforts going forward."

Deputy Commissioner Mick Willing, Regional NSW Field Operations, said preventing movement to regional areas from Sydney, and between regional areas, would be a key focus of the operation.

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"There will be more roadblocks on main arterial roads and backroads, and these operations will continue to expand throughout this week in order to enforce the permit system announced by the NSW Government," he said.

"There will be nowhere to hide if you are doing the wrong thing. If you travel anywhere beyond your LGA at the moment, you are putting everyone else in NSW at considerable risk.

"From the start, this has been about reducing movement across the state and protecting the health and safety of everyone, and this operation significantly strengthens those efforts."