Article 58 outlines special provisions for issuing Tax Invoices. It permits a taxable customer to issue a 'self-billed' invoice for goods or services received from a taxable supplier. This is conditional upon obtaining the supplier's consent, clearly marking the invoice as self-issued, and securing prior approval from the Competent Tax Administration. Such an invoice holds the same legal validity as one issued by the supplier. Additionally, the Article allows a taxable person to engage a third party to issue tax invoices on their behalf, subject to approval from the tax administration and ensuring full compliance with all obligations stipulated in this Agreement and the relevant Local Law.