Yes, that would be normal practice for any organization.
Complete Predicate: must report at the office Complete Subject: All visitors to our school
all visitors to our school
All visitors to your school
"All visitors to the factory" is the complete subject.
must report at the office
must report at the office
must report at the office
must report at the office
must report at the office
must report at the office
all visitors
The complete subject of the sentence "All visitors to our school must report at the office" is "All visitors to our school." This includes the main noun "visitors" and the modifying phrase "to our school," which provides additional information about which visitors are being referred to.