All over Poland Ministry of Public Security had regional offices.
There was one, or more UB office in each voivodeship, each of them called the Voivode Office of Public Security (Wojewódzki Urząd Bezpieczeństwa Publicznego, or WUBP).
Each WUBP had 308 full-time UB officers and employees on staff.
Beside WUBP, there were also City Offices of Public Security (Miejski Urząd Bezpieczeństwa Publicznego or MUBP), with 148 MPB officers and employees; as well as District Offices of Public Security (Powiatowy Urząd Bezpieczeństwa Publicznego or PUBP), with 51 officers and employees; and finally, the Communal Offices of Public Security (Gminny Urząd Bezpieczeństwa Publicznego, or GUBP), which were stationed at the local militia precincts (MO), with 3 UBP security officers on staff.

In 1953, in the field, there were 17 Voivode Offices of Public Security (WUBP), and 2 Regional Offices of Public Security on the order of WUBP.
There were 268 District Offices of Public Security (PUBP) and 5 City Offices of Public Security (MUBP), which operated as District Offices of Public Security (PUBP).
Together, they employed 33,200 permanent officers, of which 7,500 were stationed in their Warsaw headquarters.
According to professor Andrzej Paczkowski, in 1953, there was one UB officer for every 800 Polish citizens.
Never again, in the 45-year-old history of the People's Republic of Poland, were its special services' formations so large in numbers.
All over Poland Ministry of Public Security had regional offices. There was one, or more UB office in each voivodeship, each of them called the Voivode Office of Public Security (Wojewódzki Urząd Bezpieczeństwa Publicznego, or WUBP). Each WUBP had 308 full-time UB officers and employees on staff. Beside WUBP, there were also City Offices of Public Security (Miejski Urząd Bezpieczeństwa Publicznego or MUBP), with 148 MPB officers and employees; as well as District Offices of Public Security (Powiatowy Urząd Bezpieczeństwa Publicznego or PUBP), with 51 officers and employees; and finally, the Communal Offices of Public Security (Gminny Urząd Bezpieczeństwa Publicznego, or GUBP), which were stationed at the local militia precincts (MO), with 3 UBP security officers on staff.
In 1953, in the field, there were 17 Voivode Offices of Public Security (WUBP), and 2 Regional Offices of Public Security on the order of WUBP. There were 268 District Offices of Public Security (PUBP) and 5 City Offices of Public Security (MUBP), which operated as District Offices of Public Security (PUBP). Together, they employed 33,200 permanent officers, of which 7,500 were stationed in their Warsaw headquarters. According to professor Andrzej Paczkowski, in 1953, there was one UB officer for every 800 Polish citizens. Never again, in the 45-year-old history of the People's Republic of Poland, were its special services' formations so large in numbers.
Ministry of Public Security (Poland)