Stagger distance for rebar lap splices

[Engingguy]

I am looking in ACI 318-14 for a spec for the stagger distance between lap splices but can't find one. I am using #4 epoxy coated rebar, 60,000 psi. Concrete is 3000 psi and the splices are Class B. I need to come up with a better splice detail note than "Just stagger the splices so the concrete won't develop a crack in the weakened plane".
Thanks in advance.

 

[SlideRuleEra]

Staggering rebar splices is not always necessary. However, the Concrete Reinforcing Steel Institute (CRSI) has a free publication addressing staggered spices. You can read it online here:
CRSI Staggered Lap Spices

or download it (with free registration) here:
CRSI Technical Note ETN-D-2-13 (Staggered Lap Spices)

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[Engingguy]

Thanks, that was useful.
I have a triangular slab with upper and lower mats, and placing the splices while trying to maximize the use of 20 ft lengths is quite interesting. Moving a splice to provide clearance from another places it closer to yet another splice. Got er done, though.