republic-os/legislation/us/states/ca/20172018/ab-3187.md

---
type: "Bill"
title: "Biomethane: gas corporations: rates: interconnection."
description: "Under existing law, the Public Utilities Commission has regulatory authority over public utilities, including gas corporations. Existing law authorizes the commission to fix the rates and charges for every public utility and requires that those rates and charges be just and reasonable. Existing law requires the commission to adopt policies and programs that promote the in-state production and distribution of biomethane, as defined, and that facilitate the development of a variety of sources of in-state biomethane. The commission has adopted 2 decisions implementing these requirements, the 2nd of which adopted a 5-year monetary incentive program effective June 11, 2015, for biomethane projects. Existing law requires the commission to modify the monetary incentive program in specified respects and to extend the program, as modified, until December 31, 2021. Existing law additionally requires the commission, before exhaustion of the funds available pursuant to the biomethane monetary incentive program, and before the expiration of the program, to consider options to promote the in-state production and distribution of biomethane, including whether to allow recovery in rates of the costs of investments to (1) facilitate direct investment in the procurement and installation of utility infrastructure necessary to achieve interconnection between the natural gas transmission and distribution pipeline network and biomethane generation and collection equipment and of gathering lines for a dairy cluster biomethane project, (2) provide for the installation of utility infrastructure to achieve interconnection with facilities that generate biomethane, and (3) ensure that these investments for infrastructure are prudent and reasonable and provide a direct benefit to, and are in the interests of, all classes of ratepayers."
jurisdiction: "us/states/ca"
legislature: "California Legislature"
session: "20172018"
identifier: "AB 3187"
citation: "California AB 3187 (20172018)"
classification: ["bill"]
subjects: ["Biomethane: gas corporations: rates: interconnection."]
status: "enacted"
primary_sponsors: ["Grayson"]
version_count: 8
action_count: 27
vote_count: 8
first_action: "2018-02-16"
last_action: "2018-09-20"
source: "openstates"
source_identifier: "ocd-bill/d1a1a4d9-d2bc-456c-9fb7-6010a2fc14f2"
source_url: "http://leginfo.legislature.ca.gov/faces/billNavClient.xhtml?bill_id=201720180AB3187"
source_hash: "442d6f4b8a981d80ada66cb16509ec4a49bee72726adb82e563dc1a51808c6d8"
vintage: "2026-07-01"
source_snapshot: "https://data.openstates.org/daily/2026-07-01/public.pgdump"
retrieved_at: "2026-07-06"
confidence: "reported"
tags: ["legislation", "bill", "us-ca"]
---

# California AB 3187 (20172018) — Biomethane: gas corporations: rates: interconnection.

Under existing law, the Public Utilities Commission has regulatory authority over public utilities, including gas corporations. Existing law authorizes the commission to fix the rates and charges for every public utility and requires that those rates and charges be just and reasonable. Existing law requires the commission to adopt policies and programs that promote the in-state production and distribution of biomethane, as defined, and that facilitate the development of a variety of sources of in-state biomethane. The commission has adopted 2 decisions implementing these requirements, the 2nd of which adopted a 5-year monetary incentive program effective June 11, 2015, for biomethane projects. Existing law requires the commission to modify the monetary incentive program in specified respects and to extend the program, as modified, until December 31, 2021. Existing law additionally requires the commission, before exhaustion of the funds available pursuant to the biomethane monetary incentive program, and before the expiration of the program, to consider options to promote the in-state production and distribution of biomethane, including whether to allow recovery in rates of the costs of investments to (1) facilitate direct investment in the procurement and installation of utility infrastructure necessary to achieve interconnection between the natural gas transmission and distribution pipeline network and biomethane generation and collection equipment and of gathering lines for a dairy cluster biomethane project, (2) provide for the installation of utility infrastructure to achieve interconnection with facilities that generate biomethane, and (3) ensure that these investments for infrastructure are prudent and reasonable and provide a direct benefit to, and are in the interests of, all classes of ratepayers.

## Version chain

The bill's text revisions, in order — the diff chain from filing to enrollment.

1. **02/16/18 - Introduced** (filed) — [source](https://leginfo.legislature.ca.gov/faces/billPdf.xhtml?bill_id=201720180AB3187&version=20170AB318799INT)
2. **03/19/18 - Amended Assembly** (committee substitute) — [source](https://leginfo.legislature.ca.gov/faces/billPdf.xhtml?bill_id=201720180AB3187&version=20170AB318798AMD)
3. **04/11/18 - Amended Assembly** (committee substitute) — [source](https://leginfo.legislature.ca.gov/faces/billPdf.xhtml?bill_id=201720180AB3187&version=20170AB318797AMD)
4. **05/01/18 - Amended Assembly** (committee substitute) — [source](https://leginfo.legislature.ca.gov/faces/billPdf.xhtml?bill_id=201720180AB3187&version=20170AB318796AMD)
5. **08/21/18 - Amended Senate** (committee substitute) — [source](https://leginfo.legislature.ca.gov/faces/billPdf.xhtml?bill_id=201720180AB3187&version=20170AB318795AMD)
6. **09/20/18 - Chaptered** (committee substitute) — [source](https://leginfo.legislature.ca.gov/faces/billPdf.xhtml?bill_id=201720180AB3187&version=20170AB318793CHP)
7. **AB3187** (committee substitute) — [source](http://leginfo.legislature.ca.gov/faces/billNavClient.xhtml?bill_id=201720180AB3187)
8. **08/31/18 - Enrolled** (enrolled) — [source](https://leginfo.legislature.ca.gov/faces/billPdf.xhtml?bill_id=201720180AB3187&version=20170AB318794ENR)

## Votes

- AB 3187 GRAYSON Concurrence in Senate Amendments — **80–0** (pass) · lower
- 3rd Reading AB3187 Grayson et al. By Hueso — **39–0** (pass) · upper
- Do pass as amended — **7–0** (pass) · upper
- Do pass. To Consent Calendar. — **17–0** (pass) · lower
- Do pass, but first be re-referred to the Committee on [Appropriations] — **11–0** (pass) · upper
- AB 3187 GRAYSON Consent Calendar Second Day — **70–0** (pass) · lower
- Do pass as amended and be re-referred to the Committee on [Appropriations] — **14–0** (pass) · lower
- Placed on suspense file — **7–0** (pass) · upper

## Sponsors

- Grayson — primary (person)
- Hueso — coauthor (person)

## Timeline

The legislative action history — every referral, reading, and vote.

- **2018-02-16** Read first time. To print. `reading-1`
- **2018-02-17** From printer. May be heard in committee March 19.
- **2018-03-19** Referred to Coms. on NAT. RES. and U. & E. `referral-committee`
- **2018-03-19** From committee chair, with author's amendments: Amend, and re-refer to Com. on NAT. RES. Read second time and amended. `amendment-introduction, amendment-passage, reading-2, reading-1`
- **2018-03-20** Re-referred to Com. on NAT. RES. `referral-committee`
- **2018-04-02** Re-referred to Coms. on U. & E. and NAT. RES. pursuant to Assembly Rule 96. `referral-committee`
- **2018-04-11** In committee: Hearing postponed by committee.
- **2018-04-11** From committee chair, with author's amendments: Amend, and re-refer to Com. on U. & E. Read second time and amended. `amendment-introduction, amendment-passage, reading-2, reading-1`
- **2018-04-12** Re-referred to Com. on U. & E. `referral-committee`
- **2018-04-30** From committee: Amend, and do pass as amended and re-refer to Com. on APPR. (Ayes 14. Noes 0.) (April 25). `amendment-passage, committee-passage, amendment-introduction`
- **2018-05-01** Read second time and amended. `reading-1, amendment-passage, reading-2`
- **2018-05-02** Re-referred to Com. on APPR. `referral-committee`
- **2018-05-16** From committee: Do pass. To Consent Calendar. (Ayes 17. Noes 0.) (May 16). `committee-passage-favorable, committee-passage`
- **2018-05-17** Read second time. Ordered to Consent Calendar. `reading-2, reading-1`
- **2018-05-25** Read third time. Passed. Ordered to the Senate. (Ayes 70. Noes 0. Page 5306.) `reading-3, passage, reading-1`
- **2018-05-25** In Senate. Read first time. To Com. on RLS. for assignment. `reading-1`
- **2018-06-07** Referred to Com. on E., U. & C. `referral-committee`
- **2018-06-19** From committee: Do pass and re-refer to Com. on APPR. (Ayes 11. Noes 0.) (June 19). Re-referred to Com. on APPR. `committee-passage-favorable, committee-passage, referral-committee`
- **2018-08-06** In committee: Referred to APPR. suspense file. `referral-committee`
- **2018-08-20** From committee: Amend, and do pass as amended. (Ayes 7. Noes 0.) (August 16). `amendment-passage, committee-passage, amendment-introduction`
- **2018-08-21** Read second time and amended. Ordered to third reading. `reading-1, amendment-passage, reading-2`
- **2018-08-27** Read third time. Passed. Ordered to the Assembly. (Ayes 39. Noes 0. Page 5768.). `reading-3, passage, reading-1`
- **2018-08-27** In Assembly. Concurrence in Senate amendments pending. May be considered on or after August 29 pursuant to Assembly Rule 77.
- **2018-08-29** Senate amendments concurred in. To Engrossing and Enrolling. (Ayes 80. Noes 0. Page 6865.). `committee-passage-favorable, amendment-passage`
- **2018-09-07** Enrolled and presented to the Governor at 2:30 p.m.
- **2018-09-20** Approved by the Governor. `executive-signature`
- **2018-09-20** Chaptered by Secretary of State - Chapter 598, Statutes of 2018.

## Source

OpenStates / OpenCivicData bulk snapshot [2026-07-01](https://data.openstates.org/daily/2026-07-01/public.pgdump); origin `ocd-bill/d1a1a4d9-d2bc-456c-9fb7-6010a2fc14f2`. Confidence: reported (aggregated from official California legislature records).