It serves as a guideline (note that it is often a "Guide" rather than a mandatory "Specification") for:
"It’s allowed under E49.6 Subsection 4.4: Transfer State Optimization ," Elena corrected, tapping her tablet screen. "I’m reading the standard right now. If we implement the 'Advance Transfer' state model, the software trusts the hardware. The robot won't pause." semi e49.6 pdf