Property owners and general contractors are liable under Labor Law § 240. The statute does not impose liability on the injured worker's direct employer. Workers' compensation is the exclusive remedy against the employer.
The owner of the property where the work was being performed is liable regardless of whether they had any role in the safety failure. So is the general contractor that controlled the construction project. Both are held to the same strict-liability standard, even if the actual safety failure was caused by a subcontractor or another party on the site.
Statutory agents of the owner or general contractor, parties delegated with authority to control and supervise the work, can also be liable under § 240. The analysis turns on whether the delegated party had the authority to enforce safety measures that would have prevented the accident.