The Commission is issuing a rule to require child-resistant (``CR'') packaging for liquid household products containing more than 5 percent methacrylic acid (weight-to-volume) in a single package. The Commission has determined that child-resistant packaging is necessary to protect children under 5 years of age from serious personal injury and serious illness resulting from handling or ingesting a toxic amount of methacrylic acid. The Commission is specifically concerned about nail care products containing methacrylic acid, the only household product the Commission has confirmed contains methacrylic acid. The Commission takes this action under the Poison Prevention Packaging Act of 1970.