What is the deck lateral load connection requirement?

Hold-down tension devices at no fewer than two locations, each rated for at least 1,500 pounds, installed in line with the deck joists (IRC R507.2.3).

To keep a deck from pulling away from the house, the IRC requires lateral-load connections: hold-down tension devices at not fewer than two locations per deck, each with an allowable capacity of at least 1,500 pounds (6,672 N), installed in line with the floor joists and anchored to the home's framing.

This is separate from, and in addition to, the vertical ledger bolts. Section R507.2.4 offers an alternative method using four devices that can be installed from the exterior.

Section numbering changed in later editions (it became R507.9.2 in the 2018 IRC), so confirm which code edition your jurisdiction has adopted.