USPS RateV4 Intl RateV2 – September 7, 2014 Version K5
From USPS: Thank you for using USPS Web Tools. September 7, 2014 USPS will be implementing changes and additional features to the Web Tools APIs. Detailed release notes are available on the USPS Web Tools home page at www.usps.com/webtools. The CAT/staging environment is now available to developers for testing using your Web Tools user ID…