NLRB Stats Archive › Annual Reports › FY1957 › Types of unfair labor practices alleged
Types of unfair labor practices alleged
| Number of cases showing specific allegations | Percent of total cases | Number of cases showing specific allegations | Percent of total cases | ||
|---|---|---|---|---|---|
| A. CHARGES FILED AGAINST EMPLOYERS UNDER SEC. 8 (a) | |||||
| Total cases | 3,655 | 100 | 8 (a) (3) | 2,789 | 76.3 |
| 8 (a) (1) | 3,655 | 100 | 8 (a) (4) | 77 | 2.1 |
| 8 (a) (2) | 367 | 10 | 8 (a) (5) | 827 | 22.6 |
| B. CHARGES FILED AGAINST UNIONS UNDER SEC. 8 (b) | |||||
| Total cases | 1,851 | 100 | 8 (b) (3) | 123 | 6.6 |
| 8 (b) (1) | 1,107 | 59.8 | 8 (b) (4) | 580 | 31.3 |
| 8 (b) (2) | 1,003 | 54.2 | 8 (b) (5) | 7 | 0.4 |
| (blank left; 8(b)(6) right) | 8 (b) (6) | 9 | 0.5 | ||
| C. ANALYSES OF 8 (b) (1) AND 8 (b) (4) | |||||
| Total cases 8 (b) (1) | 1,107 | 100 | Total cases 8 (b) (4) | 580 | 100 |
| 8 (b) (1) (A) | 1,095 | 98.9 | 8 (b) (4) (A) | 414 | 71.4 |
| 8 (b) (1) (B) | 15 | 1.4 | 8 (b) (4) (B) | 203 | 35 |
| (blank left; 8(b)(4)(C) right) | 8 (b) (4) (C) | 49 | 8.4 | ||
| (blank left; 8(b)(4)(D) right) | 8 (b) (4) (D) | 118 | 20.3 |
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Source data: U.S. NLRB Annual Reports (public domain). Reconstruction by NLRB Stats Archive. Updated June 2026.