Recommended Practice.- After such acceptance, whether conditional or unconditional, the public authorities concerned should be responsible for the custody and care of passengers and crew until they are legally admitted for entry or found to be inadmissible and transferred back to the custody of the operator for transport away from the territory of the State. II. Inspection and control of persons Inspection of documents 3.53 Operators shall take precautions at the point of embarkation to ensure that passengers are in possession of the documents prescribed by the States of transit and destination for control purposes as described in Chapter 3, Section