While ACI 318 gives the engineering calculation for lap splice length, the CRSI Manual provides the practical application tables. It dictates where splices can be located (e.g., not in zones of high moment unless staggered) and the clearance between spliced bars.
The CRSI Manual of Standard Practice is a widely used reference document that provides guidelines and standards for the design, detailing, and construction of reinforced concrete structures. The manual is published by the Concrete Reinforcing Steel Institute (CRSI), a trade association that represents the interests of the steel reinforcement industry. crsi manual of standard practice pdf
However, because construction contracts rely on static code (you need to know exactly what the rule was on the day you built the rebar), the PDF format will likely remain the legal standard for another decade. While ACI 318 gives the engineering calculation for