NLRB Stats Archive › Annual Reports › FY1991 › Results of union-shop deauthorization polls in cases closed
| AFL-CIO unions | 54 | 22 | 40.7 | 32 | 59.3 | 3,644 | 1,242 | 34.1 | 2,402 | 65.9 | 2,619 | • 71.9 | 1,140 | 31.3 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Teamsters | 3 | 2 | 66.7 | 1 | 333 | 188 | 132 | 70.2 | 56 | 29.8 | 163 | 86.7 | 113 | 601 |
| Other national unions | 4 | 1 | 25 | 3 | 75 | 180 | 39 | 21.7 | 141 | 78.3 | 157 | 87.2 | 36 | 20 |
| Other local unions | . 2 | 1 | 50 | 1 | 50 | 293 | 12 | 4 1 | 281 | 95.9 | 181 | 61.8 | 10 | 3.4 |
Source data: U.S. NLRB Annual Reports (public domain). Reconstruction by NLRB Stats Archive. Updated June 2026.