Tokyo officials are loosening a long-standing office dress code and encouraging more casual clothing as part of the government-backed “Cool Biz” campaign. Multiple outlets report that Tokyo workers—particularly government office staff—are shifting away from traditional, formal attire such as suits toward lighter summer clothing, including shorter styles, to reduce heat stress. The change is presented as a response to high energy costs and reduced use of air conditioning in offices. Both sources link the move to broader efforts to conserve electricity, noting that energy expenses are rising amid international conditions, including the ongoing Middle East conflict. Rather than focusing on a single workplace policy, the reports describe a wider campaign approach: Tokyo is expanding “Cool Biz” so offices can lower indoor cooling needs while maintaining a professional work environment. The articles characterize the dress code shift as practical and temporary, tied to summer conditions and energy-saving goals, with the intended outcome being reduced air-conditioning reliance and lower overall power consumption and costs.