oryzalin (Surflan, Ryzelan) Amendment to the Reregistration Eligibility Decision
[Federal Register: November 6, 1998 (Volume 63, Number 215)]
>From the Federal Register Online via GPO Access [wais.access.gpo.gov]
ENVIRONMENTAL PROTECTION AGENCY
Oryzalin: Amendment to the Reregistration Eligibility Decision
AGENCY: Environmental Protection Agency (EPA).
ACTION: Amendment to the Oryzalin Reregistration Eligibility Decision
SUMMARY: This notice amends the Oryzalin Reregistration Eligibility
Decision (RED) Document, Case 0186, pursuant to section 4(g)(2) of the
Federal Insecticide, Fungicide and Rodenticide Act (FIFRA) 7 U.S.C. 136
et seq. This amendment revises the Personal Protective Equipment (PPE)
requirements established in the RED for handlers of oryzalin end-use
products. All handlers loaders of oryzalin liquid formulations will be
required to wear: chemical-resistant gloves, shoes, socks, long-sleeved
shirt, and long pants. In addition, mixers and loaders of liquid
formulations will be required to wear a chemical-resistant apron. PPE
for all other non-homeowner use scenarios will be determined based on
the toxicity of the end-use product, as per guidance provided by the
Worker Protection Standard (WPS). This notice does not apply to the
homeowner uses of oryzalin.
DATES: Written comments on the RED decisions must be submitted by
December 7, 1998.
ADDRESSES: Submit three copies of written comments identified with the
docket control number ``OPP-34152'' by mail to: Public Information and
Records Integrity Branch, Information Resources and Services Division
(7506C), Office of Pesticide Programs, Environmental Protection Agency,
401 M St., SW., Washington, DC 20460. In person, deliver comments to:
Rm 119, Crystal Mall 2 (CM #2), 1921 Jefferson Davis Highway,
Comments and data may also be submitted electronically by
following the instructions under ``SUPPLEMENTARY INFORMATION'' of this
document. No Confidential Business Information (CBI) should be
submitted through e-mail.
Information submitted as a comment in response to this notice may
be claimed confidential by marking any part or all of that information
as CBI. Information so marked will not be disclosed except in
accordance with procedures set forth in 40 CFR part 2. A copy of the
comment that does not contain CBI must be submitted for inclusion in
the public docket. Information not marked confidential will be included
in the public docket without prior notice (including comments and data
submitted electronically). The public docket and docket index,
including printed paper versions of electronic comments that does not
include any information claimed as CBI, will be available for public
inspection in Rm. 119 at the address given above, from 8:30 a.m. to 4
p.m., Monday through Friday, excluding legal holidays.
The Oryzalin RED and Fact Sheet are available from the National
Technical Information Service (NTIS), 5285 Port Royal Road,
Springfield, VA 22161. Attn: Order Desk; Telephone No. (703) 487-4650.
To obtain a copy of the Oryzalin RED, request publication number PB95-
1791721; for the Oryzalin RED Fact Sheet request PB95-187670. This
notice is also being forwarded to NTIS.
FOR FURTHER INFORMATION CONTACT: Carmelita White, Chemical Review
Manager, Reregistration Branch III, Special Review and Reregistration
Division (7508W), Office of Pesticide Programs, Environmental
Protection Agency, 401 M St. SW, Washington, DC 20460. Office location
and telephone number: Sixth floor, CM #2, 1921 Jefferson Davis Highway,
Arlington, VA. (703) 308-7038.
Electronic Availability: Electronic copies of this document and
various support documents are available from the EPA home page at the
Federal Register-Environmental Documents entry for this document under
"Laws and Regulations" (http://www.epa.gov/fedrgstr/).
EPA published a notice in the Federal Register of on March 8, 1995,
(60 FR 12763)(FRL-4940-6), announcing the availability of the Oryzalin
RED. In the RED, EPA provided its regulatory position on the registered
uses of oryzalin based on the information and data available at that
time. The RED set forth specific requirements for product
reregistration eligibility. The Agency required certain PPE (coveralls
over long-sleeved shirt and long pants, chemical-resistant gloves, chemical-
resistant footwear and chemical-resistant headgear for overhead exposures) for
all non-homeowner uses of oryzalin. The RED also required a chemical-resistant
apron for mixers and loaders of all non-homeowner, end-use oryzalin liquid
products. The additional PPE were required to mitigate exposure to oryzalin due
to carcinogenicity concerns.
In the Oryzalin RED, the Agency used the Pesticide Handler Exposure
Database (PHED), Version 1.0, to derive exposure estimates for mixers,
loaders and applicators. In August 1995, DowElanco requested that the
Agency reconsider the additional PPE requirements. In responding to
this request, the Agency conducted a new risk and exposure assessment
using an updated version of this same database (PHED 1.1) that
contained more accurate information. The updated PHED database became
available after the Oryzalin RED document had been published. The
refined assessment indicated that the PPE requirements in the RED were
overly restrictive, however, the refined risk estimates still showed
that baseline PPE (i.e., long-sleeved shirt, long pants, socks and
shoes) were not adequately protective of mixers and loaders of the
liquid formulations and applicators using hand-held equipment.
For mixers and loaders of oryzalin liquids and applicators using
hand-held equipment, the Agency is now requiring, chemical-resistant
gloves, long-sleeved shirt, long pants, shoes, and socks. Additionally,
for mixers and loaders of oryzalin liquids, a chemical-resistant apron
is required. PPE for all other formulations will be determined based on
the acute toxicity of the end-use product, as per guidance provided by
the Worker Protection Standard (WPS).
For the low-pressure handwand use scenario, the refined oryzalin
exposure and risk assessment used the high-pressure handwand data set
rather than the low-pressure handwand data set. The Agency believes
that the high-pressure handwand data set more closely approximates the
type of spray equipment used to apply oryzalin to ornamentals and
turfgrass. The risk estimates for applicators with the high-pressure
handwand scenario were 3.5 x 10-5 with the baseline PPE and chemical-
resistant gloves, which is in the acceptable range for applicators.
Electronic copies of the REDs and RED fact sheets can be downloaded
from the Pesticide Special Review and Reregistration Information System
at (703) 308-7224, and also can be reached on the Internet via EPA's
website at: http//www.epa.gov/REDs/.
The official record for this notice, as well as the public version,
has been established for this notice under docket control number ``OPP-
34152'' (including comments and data submitted electronically as
described below). A public version of this record, including printed,
paper versions of electronic comments, which does not include any
information claimed as CBI, is available for inspection from 8:30 a.m.
to 4 p.m., Monday through Friday, excluding legal holidays. The
official record is located at the address in ``ADDRESSES'' at the
beginning of this document.
Electronic comments can be sent directly to EPA at:
Electronic comments must be submitted as an ASCII file avoiding the
use of special characters and any form of encryption. Comment and data
will also be accepted on disks in WordPerfect 5.1 or 6.1 file format or
ASCII file format. All comments and data in electronic form must be
identified by the docket control number (OPP-34152). Electronic
comments on this notice may be filed online at many Federal Depository
List of Subjects
Dated: October 23, 1998.
Jack E. Housenger,
Acting Director, Special Review and Reregistration Division, Office of
[FR Doc. 98-29809 Filed 11-5-98; 8:45 am]
BILLING CODE 6560-50-F