l_blue_book_heading: 100, 420, 400
| bb_heading | bb_chapter | bb_division | description |
|---|---|---|---|
| 100 | 420 FACTORS RELEVANT TO DETERMINATION OF SCOPE OR COMPOSITION OF UNIT 420 | 400 BARGAINING UNITS 400 | GENERALLY |
| bb_heading | bb_chapter | bb_division | description |
|---|---|---|---|
| 100 | 420 FACTORS RELEVANT TO DETERMINATION OF SCOPE OR COMPOSITION OF UNIT 420 | 400 BARGAINING UNITS 400 | GENERALLY |