The Federal Trade Commission ("Commission") amends its Trade Regulation Rule Concerning the Labeling and Advertising of Home Insulation ("R-value Rule" or "Rule") to clarify, streamline, and improve existing requirements. Specifically, the amendments clarify the Rule's coverage, improve Fact Sheet disclosures, require certain test methods to substantiate R-value claims for non-insulation products, update the test procedures incorporated into the Rule, and exempt certain disclosures for limited format advertising.