The Chartered Science Advisory Board (SAB) will: (1) receive a briefing from EPA on cumulative impacts research, (2) conduct quality reviews for three draft SAB reports (a review of EPA’s draft IRIS toxicological review of inorganic arsenic, a review of EPA’s draft technical guidance for assessing environmental justice in regulatory analysis, and a draft commentary on advancing environmental justice science in rulemaking), (3) discuss recommendations received from the SAB Work Group for Review of Science Supporting EPA Decisions concerning SAB review of EPA planned regulatory actions, and (4) conduct a consultation with EPA on chemical mixtures.