Appellate Procedure: Technical Adviser designated as Appellate Authority, with prescribed filing timelines and board revision mechanism. These Rules designate the Technical Adviser as the Appellate Authority under the Boilers Act, require written appeals in Hindi or English presented personally or by registered/speed post with the relevant order or statement of facts, mandate prompt fixation of hearings with notice, permit ex parte decisions if appellant is absent, and make orders granting certificates subject to fees. Revision lies to a three member Appellate Board of technically qualified, conflict free members which considers records and technical advice and may specify terms for regulatory variations; fees and inspection costs are payable in advance.