This is a resolution of a voluntary disclosure by means of an administrative penalty action issued to Rogers Corporation (Respondent) pursuant to EPCRA. The violation involves failure to timely submit a MSDS, and a revised annual chemical inventory form for barium titanate, at its Chandler, Arizona, manufacturing facility. The facility stores barium titanate in an amount that is over the threshold planning quantity. During an environmental audit of its operations, Respondent discovered violations of EPCRA Sections 311 and 312, and promptly disclosed its violations to EPA. This enforcement action was based on the voluntary self-disclosure by Respondent, and resolved by a Consent Agreement/Final Order (CA/FO) initiating and resolving the violations pursuant to 40 CFR Sections 22.13 and 22.18. Application of the Audit Policy resulted in 100% penalty mitigation (zero dollars).