# Availability of the Systematic Review Protocol for the Methylmercury Integrated Risk Information System (IRIS) Assessment
**AGENCY:**
Environmental Protection Agency (EPA).
**ACTION:**
Notice of public comment period.
**SUMMARY:**
The Environmental Protection Agency (EPA) is announcing a 45-day public comment period associated with release of the Systematic Review Protocol for the Methylmercury (MeHg) IRIS Assessment. This document communicates the rationale for conducting the assessment of methylmercury, describes screening criteria to identify relevant literature, outlines the approach for evaluating study quality, and describes the dose-response methods.
**DATES:**
The 45-day public comment period begins May 28, 2020 and ends July 13, 2020. Comments must be received on or before July 13, 2020.
**ADDRESSES:**
The Systematic Review Protocol for Methylmercury will be available via the internet on the IRIS website at *https://www.epa.gov/iris* and in the public docket at *https://www.regulations.gov,* Docket ID: EPA-HQ-ORD-2018-0655.
**FOR FURTHER INFORMATION CONTACT:**
For information on the docket, contact the ORD Docket at the EPA Headquarters Docket Center; telephone: 202-566-1752; facsimile: 202-566-9744; or email: *[email protected].*
For technical information on the protocol, contact Dr. James Avery, Center for Public Health & Environmental Assessment; telephone: 202-564-1494; or email: *[email protected].*
**SUPPLEMENTARY INFORMATION:**
**I. Background Information on the IRIS Program and Systematic Review Protocols**
EPA's IRIS Program is a human health assessment program that evaluates quantitative and qualitative information on effects that may result from exposure to chemicals found in the environment. Through the IRIS Program, EPA provides high quality science-based human health assessments to support the Agency's regulatory activities and decisions to protect public health.
As part of developing a draft IRIS assessment, EPA presents a methods document, referred to as the protocol, for conducting a chemical-specific systematic review of the available scientific literature. EPA is seeking public comment on components of the protocol including the described strategies for literature searches, criteria for study inclusion or exclusion, considerations for evaluating study methods, information management for extracting data, approaches for synthesis within and across lines of evidence, and methods for derivation of toxicity values. Additionally, key scientific issues that warrant consideration in this assessment are identified in Section 2.5. The protocol serves to inform the subsequent development of the draft assessment and is made available to the public. EPA may update the protocol based on the evaluation of the literature, and any updates will be posted to the docket and on the IRIS website.
**II. How To Submit Technical Comments to the Docket at
http://www.regulations.gov**
Submit your comments, identified by Docket ID No. EPA-HQ-ORD-2018-0655 for methylmercury, by one of the following methods:
• *https://www.regulations.gov:* Follow the on-line instructions for submitting comments.
• *Email: [email protected].*
• *Fax:* 202-566-9744. Due to COVID-19, there may be a delay in processing comments submitted by fax.
• *Mail:* U.S. Environmental Protection Agency, EPA Docket Center (ORD Docket), Mail Code: 28221T, 1200 Pennsylvania Avenue NW, Washington, DC 20460. The phone number is 202-566-1752. Due to COVID-19, there may be a delay in processing comments submitted by mail.
*Note:* The EPA Docket Center and Reading Room is currently closed to public visitors to reduce the risk of transmitting COVID-19. Docket Center staff will continue to provide remote customer service via email, phone, and webform. The public can submit comments via *www.Regulations.gov* or email. No hand deliveries are currently being accepted.
*Instructions:* Direct your comments to EPA-HQ-ORD-2018-0655 for methylmercury. Please ensure that your comments are submitted within the specified comment period. Comments received after the closing date will be marked “late,” and may only be considered if time permits. It is EPA's policy to include all comments it receives in the public docket without change and to make the comments available online at *https://www.regulations.gov,* including any personal information provided, unless a comment includes information claimed to be Confidential Business Information (CBI) or other information for which disclosure is restricted by statute. Do not submit information through *https://www.regulations.gov* or email that you consider to be CBI or otherwise protected. The *https://www.regulations.gov* website is an “anonymous access” system, which means EPA will not know your identity or contact information unless you provide it in the body of your comment. If you send an email comment directly to EPA without going through *https://www.regulations.gov,* your email address will be automatically captured and included as part of the comment that is placed in the public docket and made available on the internet. If you submit an electronic comment, EPA recommends that you include your name and other contact information in the body of your comment and with any disk or CD-ROM you submit. If EPA cannot read your comment due to technical difficulties and cannot contact you for clarification, EPA may not be able to consider your comment. Electronic files should avoid the use of special characters, any form of encryption, and be free of any defects or viruses. For additional information about EPA's public docket, visit the EPA Docket Center homepage at *https://www.epa.gov/dockets.*
*Docket:* Documents in the docket are listed in the *https://www.regulations.gov* index. Although listed in the index, some information is not publicly available, *e.g.,* CBI or other information whose disclosure is restricted by statute. Certain other materials, such as copyrighted material, are publicly available only in hard copy. Publicly available docket materials are available either electronically in *https://www.regulations.gov* or as a hard copy at the ORD Docket in the EPA Headquarters Docket Center.
Dated: May 21, 2020.
Wayne Cascio,
Director, Center for Public Health & Environmental Assessment.