- - Contents ELM Revision: Thrift Savings Plan Effective September 30, 2023, the Postal Service™ will revise the Employee and Labor Relations Manual (ELM), subchapter 590, “Thrift Savings Plan,” to reflect..." /> - - Contents ELM Revision: Thrift Savings Plan Effective September 30, 2023, the Postal Service™ will revise the Employee and Labor Relations Manual (ELM), subchapter 590, “Thrift Savings Plan,” to reflect..." />