Minimum rebar to exposed concrete edge

[jar546]

When looking in forms to verify rebar placement, where do you find the minimum requirements for distance to the edge of concrete whether exposed or against the earth? I thought it was in Chapter 19 of the IBC but it looks like it points directly to ACI 318, but where in there?

 

[classicT]

 

[jar546]

I only have a 2012 ICC book on concrete and ACI318. Thanks. What about tolerances if the design specs don't address minimum cover?

 

[classicT]

IBC references ACI318 similar to A117.1. If the design spec's do not reference ACI318, the IBC does and the above minimum clearances apply.

ACI also publishes ACI 117 - Specification for Tolerances for Concrete Construction and Materials.