Overtime fee for Customs services beyond normal working hours must be paid before officers are posted for supervision. Customs provision of services beyond prescribed duty hours or at places outside the Customs area is subject to a mandatory overtime fee, payable by the trade before officers are posted. The fee covers examination, loading/unloading, escorting of goods and other authorised Customs work; differentiated hourly rates apply by officer category, with minimum block charges and specific block treatment rules for night and beyond area postings.