They referenced "Section 1015 Guards" of the 2019 California Building Code. The Building Code inspector said the besides it being 42 inch-high there's no language that addresses the climbability or the ladder effect. He did mention that the only place he's seen restrictions on "climbable" ...
[2] §3209. Standard Guardrails, California Building Code, provides description of how guard rails should be constructed. Web search 09/02/2011,original source: www.dir.ca.gov/title8/3209.html [3] Stephenson, Elliott O.,THE ELIMINATION OF UNSAFE GUARDRAILS, A PROGRESS REPORT[PDF]Building Stan...