An Act designating the Black Swallowtail as the Commonwealth of Massachusetts official butterfly in honor of William P. Callahan III

Introduced

In Committee

Floor

Crossed Over

Passed

Enacted

Overview Bill text 1 History 5 Sponsors

Mar 2, 2026 · House

Accompanied a study order, see H5168

Jul 30, 2025 · House

Reporting date extended to Wednesday, December 3, 2025

May 7, 2025 · Massachusetts General Court

Hearing scheduled for 05/13/2025 from 01:00 PM-05:00 PM in A-2

Feb 27, 2025 · House

Referred to the committee on State Administration and Regulatory Oversight

Feb 27, 2025 · Senate

Senate concurred

PASSAGE PROBABILITY

1% Unlikely

Why this number

Stage base In Committee — base rate 4%, measured from MA's completed sessions
Momentum -4 30/100 from the pace of recorded action
Time since last action -22 227 days quiet

A transparent scoring model over stage, momentum, recency, sponsorship and recorded votes — not a trained predictor. Treat it as a way to rank attention, not as a forecast.