Basic lightning protection is covered in standard building techniques- a properly bonded and grounded structure is inherently lightning resistant from a lightning rod standpoint.
As far as lightning rods and lightning arrestors go, IBC is completely silent on this matter. NEC Article 280 and 285 aren't much help either, but then, NEC is a safety codes and not a design guides. It does surprise me that NFPA 780 is silent! The greatest risk from a lightning strike is one that comes from the power lines, and is generally provided for by surge arrestors on the utility's side. (If the strike were to occur at the pole in front of a house, it's going to overwhelm the surge arrestor anyhow.)
It doesn't really apply to you, but DoD Tech Manual 5-684 requires lightning arrestors when transitioning from aerial to underground conductors, and to protect aerial transformers; I think this may be based on NESC requirements, but I'm not sure. Beyond that, it's an engineering decision on whether it's cost justified. I do not believe it's ever outright required past the service. But a TVSS on the main switchboard/panel (and at every key distribution point in an article 708-type facility) is always a good idea.
