| | Referred to TRANSPORTATION, April 1, 1976 |
| | Reported as amended, June 16, 1976 |
| | First consideration, June 16, 1976 |
| | Re-committed to RULES, June 16, 1976 |
| | Re-reported as committed, Sept. 20, 1976 |
| | Laid on the table, Sept. 20, 1976 |
| | Removed from table, Nov. 17, 1976 |
| | Re-committed to RULES, Nov. 17, 1976 |