NLRB Stats Archive › Annual Reports › FY1971 › Types of unfair labor practices alleged
Types of unfair labor practices alleged
| Sub-allegation | Number of cases showing specific allegations | Percent of total cases | |
|---|---|---|---|
| A. Charges Filed against Employers Under Sec. 8(a) — Total cases | Total cases (8(a)) | 15,467 | 100 |
| 8(a)(1) — General restraint of employees | 8(a)(1) | 1,363 | 8.8 |
| 8(a)(2) — Employer-dominated union | 8(a)(2) | 278 | 1.8 |
| 8(a)(3) — Discrimination (discharges) | 8(a)(3) | 8,285 | 53.6 |
| 8(a)(4) — Filed-charge retaliation | 8(a)(4) | 61 | 0.4 |
| 8(a)(5) — Refusal to bargain | 8(a)(5) | 3,297 | 21.3 |
| 8(a) — 8(a)(1) [composite] | 8(a)(1) [includes derivative] | 15,467 | 100 |
| 8(a) — 8(a)(2) | 8(a)(2) | 670 | 4.3 |
| 8(a) — 8(a)(3) | 8(a)(3) | 10,368 | 67 |
| 8(a) — 8(a)(4) | 8(a)(4) | 378 | 2.4 |
| 8(a) — 8(a)(5) | 8(a)(5) | 5,018 | 32.4 |
| B. Charges Filed Against Unions Under Sec. 8(b) — Total cases | Total cases (8(b)) | 8,250 | 100 |
| 8(b)(1) — Restraint or coercion of employees | 8(b)(1) | 2,847 | 34.5 |
| 8(b)(4) — Secondary boycott + jurisdictional | 8(b)(4) | 2,427 | 29.4 |
| 8(b)(7) — Recognitional picketing | 8(b)(7) | 472 | 5.7 |
| 8(b) — 8(b)(1) | 8(b)(1) | 4,755 | 57.6 |
| 8(b) — 8(b)(2) | 8(b)(2) | 1,921 | 23.3 |
| 8(b) — 8(b)(3) | 8(b)(3) | 542 | 7.8 |
| B1. Analysis of 8(b)(4) — Total cases | Total cases 8(b)(4) | 2,427 | 100 |
| 8(b)(4)(B) — Secondary boycott | 8(b)(4)(B) | 1,576 | 65 |
| 8(b)(4)(D) — Jurisdictional | 8(b)(4)(D) | 697 | 28.7 |
| B2. Analysis of 8(b)(7) — Total cases | Total cases 8(b)(7) | 472 | 100 |
| 8(b)(7)(A) | 8(b)(7)(A) | 136 | 28.8 |
| 8(b)(7)(B) | 8(b)(7)(B) | 26 | 5.5 |
| 8(b)(7)(C) | 8(b)(7)(C) | 304 | 64.4 |
| C. Charges Filed Under Sec. 8(e) — Total cases | Total cases (8(e)) | 53 | 100 |
| Against unions alone | Against unions alone | 39 | 73.6 |
| Against employers alone | Against employers alone | 0 | 0 |
| Against unions and employers | Against unions and employers | 14 | 26.4 |
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Source data: U.S. NLRB Annual Reports (public domain). Reconstruction by NLRB Stats Archive. Updated June 2026.