Office of Environmental Health Hazard Assessment

Most Popular Links

Listservs

More Resources

Prop. 65 resources

Enforcement

Administrative Listing Mechanism

State’s Qualified Experts Mechanism

More Resources

 

Proposition 65

Notice of Proposed Rulemaking Title 22, California Code of Regulations Amendment to Section 12805, Specific Regulatory Levels: Reproductive Toxicants 2,4-D Butyric Acid (2,4-DB, 2,4-Dichlorophenoxybutyric acid), m-Dinitrobenzene, Hydramethylnon and N-methylpyrrolidone
[03/14/03]

NOTICE IS HEREBY GIVEN that the Office of Environmental Health Hazard Assessment proposes to establish specific regulatory levels having no observable effect for 2,4-D butyric acid (2,4-DB, 2,4-dichlorophenoxybutyric acid), m-dinitrobenzene, hydramethylnon and N-methylpyrrolidone and amend Title 22, California Code of Regulations, Section 12805.

PUBLIC PROCEEDINGS

A public hearing will be held on April 28, 2003, at which time any person may present statements or arguments orally or in writing relevant to the action described in this notice. The public hearing will commence at 10:00 a.m. in the Central Valley Auditorium, California Environmental Protection Agency Building, 1001 I Street, 2nd Floor, Sacramento, California and will last until all business has been conducted, or until 5:00 p.m.

Any written statements or arguments regardless of the form or method of transmission must be received by OEHHA by 5:00 p.m. on April 28, 2003, which is hereby designated as the close of the written comment period.

Written comments regarding this proposed action can be sent by mail or by fax addressed to:

Sam Delson
Office of Environmental Health Hazard Assessment
Proposition 65 Implementation Program
P. O. Box 4010
Sacramento, California 95812-4010
FAX: (916) 323-8803
Telephone: (916) 445-6900

Comments sent by courier should be delivered to:

Sam Delson
Office of Environmental Health Hazard Assessment
1001 I Street, 19th Floor
Sacramento, California 95814
Comments may also be transmitted via e-mail addressed to: (sam.delson@oehha.ca.gov).

It is requested but not required that written statements or arguments be submitted in triplicate.

CONTACT

Please direct inquiries concerning processing of the action described in this notice to Sam Delson or Cynthia Oshita, in writing at the address given above, or by telephone at (916) 445-6900. Inquiries concerning the substance of the action may be directed to Colleen Heck, Chief Counsel, in writing at the address given above, or by telephone at (916) 324-2831.

INFORMATIVE DIGEST/POLICY STATEMENT OVERVIEW

The Safe Drinking Water and Toxic Enforcement Act of 1986, commonly known as Proposition 65 (hereinafter referred to as "the Act"), prohibits a person in the course of doing business from knowingly and intentionally exposing any individual to a chemical that has been listed as known to cause cancer or reproductive toxicity without first giving clear and reasonable warning to such individual (Health and Safety Code Section 25249.6). The Act also prohibits such persons from knowingly discharging a listed chemical into water or onto or into land where such chemicals pass or probably will pass into any source of drinking water (Health and Safety Code Section 25249.5).

For chemicals known to the state to cause reproductive toxicity, an exemption from the warning requirement is provided by the Act when a person in the course of doing business is able to demonstrate that an exposure for which he or she is responsible produces no observable reproductive effect, assuming exposure at 1,000 times the level in question (Health and Safety Code Section 25249.10). The maximum dose level at which a chemical has no observable reproductive effect is referred to as the no observable effect level (NOEL). The Act also provides an exemption from the prohibition against discharging a listed chemical into sources of drinking water if the amount discharged does not constitute a "significant amount" as defined and the discharge is in conformity with all other laws and regulatory requirements (Health and Safety Code Sections 25249.9 and 25249.11). The term "significant amount" is defined in a manner that equates to the level that triggers the warning requirement. Thus, these exemptions apply when an exposure or discharge does not exceed the NOEL divided by 1,000. One method by which a person in the course of doing business may determine whether an exposure or a discharge is exempt from the Act is by application of the specific regulatory level for the chemical in Section 12805. The levels in Section 12805 represent the maximum dose level at which the chemical has no observable reproductive effect, given an exposure at one thousand (1,000) times the level in question.

The amendment to Section 12805 would adopt the following regulatory levels for chemicals known to the state to cause reproductive toxicity:

Chemical MADL, in units micrograms per day Reference
2,4-D butyric acid (2,4-DB, 2,4-dichlorophenoxybutyric acid) 910 OEHHA (2003a)
m-Dinitrobenzene 38 (oral) OEHHA (2003b)
Hydramethylnon 120 (oral) OEHHA (2003c)
N-Methylpyrrolidone 3,200 (inhalation)
17,000 (dermal)
OEHHA (2003d)

The risk assessments which were used by the Office of Environmental Health Hazard Assessment to determine the stated levels are as follows:

Follow the links to download pdf copies of the risk assessments.

Office of Environmental Health Hazard Assessment (OEHHA, 2003a). Proposition 65 Maximum Allowable Dose Level (MADL) for Male Reproductive Toxicity for 2,4-D Butyric Acid. OEHHA Reproductive and Cancer Hazard Assessment Section, California Environmental Protection Agency, Sacramento, March 2003.

Office of Environmental Health Hazard Assessment (OEHHA, 2003b). Proposition 65 Maximum Allowable Dose Level (MADL) for Reproductive Toxicity for m-Dinitrobenzene for Oral Exposure. OEHHA Reproductive and Cancer Hazard Assessment Section, California Environmental Protection Agency, Sacramento, March 2003.

Office of Environmental Health Hazard Assessment (OEHHA, 2003c). Proposition 65 Maximum Allowable Dose Level (MADL) for Reproductive Toxicity for Hydramethylnon for Oral Exposure. OEHHA Reproductive and Cancer Hazard Assessment Section, California Environmental Protection Agency, Sacramento, March 2003.

Office of Environmental Health Hazard Assessment (OEHHA, 2003d). Proposition 65 Maximum Allowable Dose Level (MADL) for Reproductive Toxicity for N-Methylpyrrolidone for Dermal and Inhalation Exposure. OEHHA Reproductive and Cancer Hazard Assessment Section, California Environmental Protection Agency, Sacramento, March 2003.

AUTHORITY
Health and Safety Code Section 25249.12.


REFERENCE
Health and Safety Code Sections 25249.5, 25249.6, 25249.9, 25249.10 and 25249.11.

IMPACT ON LOCAL AGENCIES OR SCHOOL DISTRICTS
OEHHA has determined the proposed regulatory action would not pose a mandate on local agencies or school districts nor does it require reimbursement by the State pursuant to Part 7 (commencing with Section 17500) of Division 4 of the Government Code. The Office of Environmental Health Hazard Assessment has also determined that no nondiscretionary costs or savings to local agencies or school districts will result from the proposed regulatory action.

COSTS OR SAVINGS TO STATE AGENCIES
OEHHA has determined that no savings or increased costs to any State agency will result from the proposed regulatory action.

EFFECT ON FEDERAL FUNDING TO THE STATE
OEHHA has determined that no costs or savings in federal funding to the State will result from the proposed regulatory action.

EFFECT ON HOUSING COSTS
OEHHA has determined that the proposed regulatory action will have no effect on housing costs.

SIGNIFICANT STATEWIDE ADVERSE ECONOMIC IMPACT DIRECTLY AFFECTING BUSINESS, INCLUDING ABILITY TO COMPETE
OEHHA has made an initial determination that the adoption of the regulation will not have a significant statewide adverse economic impact directly affecting businesses, including the ability of California businesses to compete with businesses in other states.

IMPACT ON THE CREATION, ELIMINATION, OR EXPANSION OF JOBS/BUSINESSES
OEHHA has determined that the proposed regulatory action will not have any impact on the creation or elimination of jobs, the creation of new businesses or the elimination of existing businesses, or the expansion of businesses currently doing business within the State of California.


COST IMPACTS ON REPRESENTATIVE PRIVATE PERSONS OR BUSINESSES
OEHHA is not aware of any cost impacts that a representative private person or business would necessarily incur in reasonable compliance with the proposed action.

EFFECT ON SMALL BUSINESSES
OEHHA has determined that the proposed regulation will not impose any requirements on small business. Rather, the proposed regulation will assist small businesses subject to the Act in determining whether or not an exposure for which they are responsible is subject to the warning requirement or discharge prohibition.

CONSIDERATION OF ALTERNATIVES
In accordance with Government Code Section 11346.5(a)(13), OEHHA must determine that no reasonable alternative considered by OEHHA, or that has otherwise been identified and brought to the attention of OEHHA would be more effective in carrying out the purpose for which the action is proposed or would be as effective and less burdensome to affected private persons than the proposed action.

AVAILABILITY OF STATEMENT OF REASONS AND TEXT OF PROPOSED REGULATIONS
OEHHA has prepared and has available for public review an Initial Statement of Reasons for the regulation, all the critical information upon which the regulation is based, and the text of the regulation. A copy of the Initial Statement of Reasons, a copy of the text of the regulation and copies of the risk assessments which were used by OEHHA to determine the MADLs are available upon request from OEHHA's Proposition 65 Implementation Program at the address and telephone number indicated above. These documents are also posted on OEHHA's Web site at www.oehha.ca.gov.

Follow this link to download a copy of the Initial Statement of Reasons

AVAILABILITY OF CHANGED OR MODIFIED TEXT: The full text of any regulation which is changed or modified from the express terms of the proposed action will be made available at least 15 days prior to the date on which OEHHA adopts the resulting regulation. Notice of the comment period on changed regulations and the full text will be mailed to individuals who testified or submitted written comments at the public hearing, whose comments were received by OEHHA during the public comment period, and who request notification from OEHHA of availability of such changes. Copies of the notice and the changed regulation will also be available at the OEHHA's Web site at www.oehha.ca.gov.

Follow this link to download a copy of the changed or modified text.

FINAL STATEMENT OF REASONS
A copy of the Final Statement of Reasons may be obtained, when it becomes available, from OEHHA's Proposition 65 Implementation Program at the address and telephone
number indicated above. The Final Statement of Reasons will also be available at the OEHHA's Web site at www.oehha.ca.gov.


OFFICE OF ENVIRONMENTAL
HEALTH HAZARD ASSESSMENT

Allan Hirsch
Deputy Director
External and Legislative Affairs

Dated: March 4, 2003

 
 
Flex Your Power Website
Energy efficiency and conservation information. Find incentives/rebates, technical assistance, retailers, product guides, case studies and more.
AMBER ALERT: Save a Child Amber Alert logo
AMBER ALERT empowers law enforcement, the media and the public to combat abduction by sending out immediate information.