Regarding brake pads, who is correct? Counterman A says "Low Copper" brake pads are replacing many current friction materials. Counterman B says "Low Copper" brake pads are required in some states now.

Counterman A is correct in stating that "Low Copper" brake pads are increasingly replacing many current friction materials. The automotive industry has been transitioning towards brake pads that contain less copper due to environmental concerns. These changes come in response to regulations aimed at reducing pollution from brake wear particles, which are known to contain copper and can harm waterways and aquatic life.

Counterman B is also correct since certain states have enacted regulations that require the use of "Low Copper" brake pads or friction materials. For instance, states like California and Washington have implemented laws restricting copper content in brake pads to address environmental issues. These regulations compel manufacturers to design and produce brake pads that meet stricter criteria, leading to a larger market presence for low copper options.

Together, these statements illustrate a significant trend in the automotive parts industry focused on sustainability and regulatory compliance, making both Counterman A and Counterman B accurate in their claims.