Mandates sunset dates for energy-related regulations across specific agencies (EPA, DOE, etc.). Existing rules expire in 1 yr unless reviewed & justified; new rules in max 5 yrs. Aims to cut regs, boost energy production by requiring periodic re-justification. This EO forces federal agencies regulating energy to justify existing rules or see them expire in one year, with new rules expiring in five. While framed as unleashing energy and cutting red tape, this move fundamentally alters the regulatory baseline and could potentially dismantle crucial environmental and safety protections without fully accounting for their benefits or the immense administrative burden on agencies for rapid review.