Final answer:
A handrail or fall protection should be installed as soon as construction begins to ensure safety on the site.
Step-by-step explanation:
A handrail or fall protection should be installed as soon as construction begins. This is to ensure the safety of workers and anyone else on the site. Handrails and fall protection are essential in preventing falls from heights and are required by safety regulations for all types of buildings, not just multi-story ones.