Exhibit 31.1 CERTIFICATION I, Stephen D. Newlin Exhibit 31.2 CERTIFICATION I, Bradley C. Exhibit 32.2 CERTIFICATION PURSUANT TO 18 U.S.C.

February 5, 2015 February 5, 2015 February 4, 2015

Oct 27, 2015 8:00 AM EDT

Jul 27, 2015 9:00 AM EDT

Exhibit 31.1 CERTIFICATION I, Robert M. Patterson Exhibit 31.2 CERTIFICATION I, Jamie A. Exhibit 32.2 CERTIFICATION PURSUANT TO 18 U.S.C.

Homepage // News Center // PolyOne Debuts Latest Healthcare Solutions at MD&M West 2015 February 10, 2015 ANAHEIM, Calif. – PolyOne Corporation (NYSE: POL), a premier global provider of specialized polymer materials, services and solutions, will showcase its dynamic range of technologies for the healthcare industry at Medical Design and Manufacturing (MD&M) West 2015 this week.

Distributors have until December 1, 2015 to implement the same changes. The modified WHMIS regulation is now referred to as WHMIS 2015; which adopts GHS. The European Union has already required several changes to SDSs under both the chemical registration framework of REACH, and the Classification Labeling and Packaging (CLP) which result in similar format changes to those required under GHS.

Homepage // News Center // Halal Certification Expands for Avient’s Colorants and Additives Produced at Indonesia Site Avient Obtains Halal Certification Expansion to Include its Colorants and Additives Produced at the Tangerang, Indonesia Facility. This expands the Halal certification already obtained for Remafin™, Renol™, Cesa™, Hiformer™, and Omnicolor™ brands since 2019.  

Certification was granted by an independent, third-party auditor, based on In order to receive certification, an ACC member or Partner company must demonstrate conformance to the Responsible Care Management System's comprehensive set of EHS&S requirements, which are validated through an independent, third-party audit process. View original content:http://www.prnewswire.com/news-releases/polyone-achieves-responsible-care-certification-by-american-chemistry-council-300577923.html

BEIGE G7940-9001-02 Certificate of Analysis (COA) - labeled as "Material"