Movie theaters, indoor performance centers and indoor dining have returned to New Jersey, but state residents have been put on notice.

“We have been very clear, the restrictions we have put in place are there to protect the public health and save lives,” Gov. Phil Murphy said Friday. “Let this be a warning to everybody out there.”

Restaurants must operate at 25% capacity and tables must be at least 6 feet apart. Masks must be worn at all times, except when eating.

“There is nothing more than I would like – or I suspect my colleagues to do – than to eventually expand restaurant capacities. But I cannot and we will not be able to do that if this weekend or the weeks that follow see a slew of restaurant owners and managers flagrantly violating the rules,” Murphy said.

The reopenings come as most schools plan to restart classes next week. The state reviewed over 600 plans, but still need to approve 17. More than half of the districts have opted to use a combination of remote and in-person learning.

“I know [Education] Commissioner Kevin Dehmer and his team are pushing to get every plan approved on time and I have every confidence our school year will get off to a save start,” Murphy said.

And amid concern that cigarette smoke can help the spread of the virus, the governor issued an emergency order banning smoking in casinos.

“We have looked closely at the science and agree with the experts who have concluded that allowing smoking is too big a risk to take,” Murphy said.

“As we head into the Labor Day weekend, I urge everyone to please take precautions while celebrating,” said Health Commissioner Judith Persichilli. “The cost of attending a barbecue or enjoying a drink with friends should not be a deadly virus.”

State officials announced Friday 478 new positive COVID-19 cases, along with seven additional deaths.