* Norwegian labour inspection - boiler supervision
This page shows decentralized state units and decentralized subordinate units.
Decentralized units
| Year | Count | Name | Decentralized |
|---|---|---|---|
| 1947 | 10 | district offices | subordinate units |
| 1948 | 10 | district offices | subordinate units |
| 1949 | 11 (est.) | district offices | subordinate units |
| 1950 | 11 (est.) | district offices | subordinate units |
| 1951 | 11 (est.) | district offices | subordinate units |
| 1952 | 11 | district offices | subordinate units |
| 1953 | 11 | district offices | subordinate units |
| 1954 | 11 | district offices | subordinate units |
| 1955 | 11 | district offices | subordinate units |
| 1956 | 11 | district offices | subordinate units |
| 1957 | 11 | district offices | subordinate units |
| 1958 | 11 | district offices | subordinate units |
| 1959 | 11 | district offices | subordinate units |
| 1960 | 11 | district offices | subordinate units |
| 1961 | 11 | district offices | subordinate units |
| 1962 | 11 | district offices | subordinate units |
| 1963 | 11 | district offices | subordinate units |
| 1964 | 12 (est.) | district offices | subordinate units |
| 1965 | 12 (est.) | district offices | subordinate units |
| 1966 | 12 (est.) | district offices | subordinate units |
| 1967 | 12 | district offices | subordinate units |
| 1968 | 12 | district offices | subordinate units |
| 1969 | 12 | district offices | subordinate units |
| 1970 | 12 | district offices | subordinate units |
| 1971 | 12 | district offices | subordinate units |
| 1972 | 12 | district offices | subordinate units |
| 1973 | 12 | district offices | subordinate units |
| 1974 | 12 | district offices | subordinate units |
| 1975 | 12 | district offices | subordinate units |
| 1976 | 12 | district offices | subordinate units |
| 1977 | 12 | district offices | subordinate units |
| 1978 | 12 | district offices | subordinate units |
| 1979 | 12 | district offices | subordinate units |
| 1980 | 12 | district offices | subordinate units |
| 1981 | 12 | district offices | subordinate units |