| 2018-01-31 | House | Reported from the committee on House Ways and Means |
| 2018-01-31 | House | New draft of H4158 |
| 2018-01-31 | House | Bill reported favorably by committee and referred to the committee on House Steering, Policy and Scheduling |
| 2018-01-31 | House | Committee reported that the matter be placed in the Orders of the Day for the next sitting |
| 2018-01-31 | House | Read second and ordered to a third reading |
| 2018-01-31 | House | Rules suspended |
| 2018-01-31 | House | Rules suspended |
| 2018-01-31 | House | Read third |
| 2018-01-31 | House | Amendment 1 adopted, as changed - 153 YEAS to 0 NAYS (See YEA and NAY in Supplement, No. 308) |
| 2018-01-31 | House | Passed to be engrossed - 153 YEAS to 0 NAYS (See YEA and NAY in Supplement, No. 309) |
| 2018-02-01 | Senate | Read, rules suspended, read second |
| 2018-02-01 | Senate | New text substituted (Spilka), see S2280 |
| 2018-02-01 | Senate | Ordered to a third reading |
| 2018-02-01 | Senate | Read third |
| 2018-02-01 | Senate | Passed to be engrossed -see Roll Call #323 (Yeas 38 to Nays 0) |
| 2018-02-05 | House | Referred to the committee on Bills in the Third Reading |
| 2018-02-15 | House | Senate amendments divided |
| 2018-02-15 | House | House NON-concurred with the Senate amendment striking the emergency preamble |
| 2018-02-15 | House | House concurred in the Senate amendment with a further amendment, see H4242 |
| 2018-02-15 | Senate | Rules suspended |
| 2018-02-15 | Senate | Senate receded from its amendment striking the emergency preamble |
| 2018-02-15 | Senate | Senate concurred in the further House amendment |
| 2018-02-15 | House | Emergency preamble adopted |
| 2018-02-15 | Senate | Emergency preamble adopted |
| 2018-02-15 | House | Enacted |
| 2018-02-15 | Senate | Enacted and laid before the Governor |
| 2018-02-16 | Executive | Signed by the Governor, Chapter 24 of the Acts of 2018 |