The article emphasizes the importance for plan sponsors of welfare and pension benefit plans to update their plan documentation in light of recent legal changes, including the US Supreme Court's decision extending benefits to same-sex couples and the Affordable Care Act's eligibility requirements. It details essential components that should be included in plan documents to ensure compliance with ERISA and IRS regulations, along with specific guidelines for reporting and disclosure. The guidance aims to help employers navigate complex eligibility standards and maintain compliance to avoid penalties.