Plasă (Romanian pronunciation: [ˈplasə], plural plăşi [ˈpləʃʲ]) was a territorial division unit of Romania, ranking below county (judeţ) and above commune. It was headed by a Pretor, appointed by the county Prefect. The institution headed by the Pretor was called Pretură.

The division of counties into plăşi was used starting from the rule of Carol I as Domnitor, throughout the existence of a Romanian Kingdom, and during the first two years of Communist Romania, until they were replaced in 1950 by raions, following the Soviet system.

Serafim Urechean (born 2 February 1950, Larga, Briceni, Moldovan SSR) is a Moldovan politician.

In 1974, Urechean graduated from the Polytechnic Institute in Chişinău. He carried out the compulsory military service in the Soviet army, at Tolyatti (1974–1976). In 1985, he graduated from the Higher Party School of Leningrad, Russia.

He worked as an engineer at the Constructions Enterprise Briceni (1976–1978); Head of Department for Industrial and Constructions Development, Second Secretary of the District Committee of the Communist Party of Moldova in Briceni (1978–1983); Chairman of the District Executive Committee in Anenii Noi (1985–1987).

He was Chairman of the Federation of Independent Trade Unions of the Republic of Moldova (1987–1994) and a Member of the Moldovan Parliament (1990–1994). Since 9 August 1994 he has been the General Mayor of Chişinău Municipality. He is Chairman of the Federation of Local and Regional Authorities of the Republic of Moldova, and Chairman of the Federation of Check of Moldova. He is married to Tatiana Marcenco and has two children.