POL Government Elected Officials Auditor Mary Hull Caballero Charter, Code & Policies City Code & Charter Online Code & Charter Title 19 Chapter 19.16  Rules And Regulations
19.16.130 Check To Be Kept of Employees Handling Bulk or Dangerous Cargo.

Whenever any bulk or dangerous cargo is being worked in the hold of any vessel or other floating craft, the foreman or person in charge of any such work shall keep an accurate check or count of all persons at all times while so engaged or employed, and a count must be made of all persons entering and leaving the holds of any vessel or watercraft while such cargo is being worked.