The city kicks off Construction Safety Week by cracking down on sites around the five boroughs.
Officials say a sweep of more than 900 low-rise construction sites led to almost $1 million in fines.
Buildings Commissioner Robert LiMandri says the stepped-up enforcement comes as construction accidents increased 37 percent last year.
He says seven of the eight deadly accidents happened at construction sites for buildings less than nine stories high.
The commissioner says all the accidents were preventable.
"When you go back to your job sites, you have to reinforce the need for guard rails, harnesses, nets. You have to reinforce the need for safety meetings during the pre-task planning meetings," LiMandri says. "Sharing information saves lives."
LiMandri says the city has started an aggressive multilingual education campaign to help workers protect themselves.
Officials say construction permit applications increased by 3 percent last year.