Abbr.: ERG. A guarantee provided in respect of receivables from export business. The Swiss federal export risk guarantee system has been in existence since 1934. On Jan 1, 2007 SERV, a federal institute under public law became ERG's successor. Export risk guarantees are not limited to exports of physical goods, but can also be extended in respect of many other forms of economic transactions, such as the leasing of goods, construction, engineering and development services, licensing, and scientific, technical and corporate consulting.