Cess collection and refund procedure for construction work sets employer reporting, advance payment, scrutiny, and refund mechanisms. Rule 41 prescribes the procedure for collection, advance payment, assessment, transfer, and refund of cess for building and other construction work. Employers must furnish prescribed information on commencement, modification, stoppage, reduction, and completion of work, and pay advance cess on self-assessment certified by a chartered engineer. The assessing officer may scrutinise the return, issue notice where undervaluation is suspected, and complete assessment within the prescribed period. Excess advance cess may be refunded when work is withdrawn, foreclosed, reduced, or otherwise not completed.