This rule mandates that each Incorporated Body must register with the Tax Department within 30 days of signing a contract or commencing activities. The registration requires a specific form detailing the body's name, nationality, activity, addresses, financial year, and local agent information. This form must be signed by an authorised signatory. Furthermore, the rule specifies that the application must be accompanied by supporting documentation, including the Articles of Association, agency agreements, business contracts, and any exemption certificates, to validate the provided information for compliance purposes.