- - Contents IMM Revision: Individual Country Listing for Ecuador Effective August 10, 2023, the Postal Service™ is revising the Individual Country Listing (ICL) for Ecuador in Mailing Standards of the Uni..." /> - - Contents IMM Revision: Individual Country Listing for Ecuador Effective August 10, 2023, the Postal Service™ is revising the Individual Country Listing (ICL) for Ecuador in Mailing Standards of the Uni..." />