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About Multiple Chemical Sensitivity
Multiple Chemical Sensitivity/Environmental Illness (MCS/EI) is an inability to tolerate an environmental chemical or class of chemicals. It usually develops from exposure to substances in the environment and may result in intolerance to even very low levels of chemicals. Symptoms can occur in more than one organ system in the body, such as the nervous system, the lungs, and the heart. Exposures can come through the air, from food and water, or through the skin. MCS/EI causes different symptoms in different people. Symptoms may include: headaches, dizziness, fatigue, nausea, breathing difficulties, tightening of the throat, difficulty concentrating, memory loss, learning disorders, eczema, arthritis-like sensations, and muscle pain. A person who experiences limitations due to MCS/EI may have any of the above mentioned symptoms when exposed to such irritants as fragrances, cleaning agents, smoke, pesticides, molds, office machines, car exhaust, paint, new carpeting, solvents, poor indoor air quality, and others. There are specific considerations to consider when accommodating an individual with MCS/EI.
Ventilation and Indoor Air Quality Issues:
- Provide an office or workspace that has working windows.
- Make certain the ventilation system is not distributing pollutants throughout the work-site from locations within or outside of the building.
- Use HEPA filters in the ventilation system if possible and have ducts maintained.
- Have an air quality test performed by an industrial hygiene professional to assess poor air quality, dust, mold or mildew accumulation, VOC concentration, etc.
- Work with specialists in the industrial hygiene field by contacting resources like the American Industrial Hygiene Association for a member referral.
- Use air purification systems throughout the building or in personal workstations. Work with specialists in the air filtration field by contacting resources like The National Air Filtration Association for a member referral.
- Maintain a work environment which is free of pollutants such as fragrances, toxic cleaning agents, pesticides, exhaust fumes, tobacco smoke, etc.
- Provide adequate exhaust systems to remove fumes from copiers and similar office machines.
Construction, Remodeling, and Cleaning Issues:
- Provide pre-notification of events such as remodeling, painting, pesticide applications, floor waxing, and carpet shampooing by way of signs, memos, e-mail or an employee register. A voluntary registry can be created for people to be notified on a regular basis.
- Allow for alternative work arrangements for those people who may be sensitive to the chemical agents used in the above activities such as offering the use of another office, work on another floor of the building, work outside, or work from home.
- Use non-toxic building materials, furnishings, and supplies.
- Use non-toxic carpeting or alternative floor covering such as tile or cotton throw rugs. Products can be used to reduce the out-gassing of newly laid carpeting.
- If industrial products are being used such as solvents, primers, stains, paints, lubricants, etc., consider any alternative products that could possibly be used that may not illicit an MCS/EI reaction.
- If possible, have cleaning, maintenance, and remodeling activities performed when the building is not occupied to reduce employee exposure to these activities.
- Discontinue the use of toxic pesticides and opt for an alternative pest management policy. Contact resources like the National Pesticide Telecommunications Network or the National Coalition Against the Misuse of Pesticides to find out more about alternative pest management practices.
- Discontinue the use of synthetic lawn care products.
Multiple Chemical Sensitivity and the Americans with Disabilities Act
The ADA does not contain a definitive list of medical conditions that constitute disabilities. Instead, the ADA defines a person with a disability as someone who (1) has a physical or mental impairment that substantially limits one or more "major life activities," (2) has a record of such an impairment, or (3) is regarded as having such an impairment. For more information about how to determine whether a person has a disability under the ADA, see How to Determine Whether a Person Has a Disability under the Americans with Disabilities Act Amendments Act (ADAAA).
Accommodating Employees with Multiple Chemical Sensitivity
People with multiple chemical sensitivity may develop some of the limitations discussed below, but seldom develop all of them. Also, the degree of limitation will vary among individuals. Be aware that not all people with multiple chemical sensitivity will need accommodations to perform their jobs and many others may only need a few accommodations. The following is only a sample of the possibilities available. Numerous other accommodation solutions may exist.
Questions to Consider:
- What limitations is the employee experiencing?
- How do these limitations affect the employee and the employee’s job performance?
- What specific job tasks are problematic as a result of these limitations?
- What accommodations are available to reduce or eliminate these problems? Are all possible resources being used to determine possible accommodations?
- Once accommodations are in place, would it be useful to meet with the employee to evaluate the effectiveness of the accommodations and to determine whether additional accommodations are needed?
- Do supervisory personnel and employees need training?
Accommodation Ideas:
By Limitation
Coughing Excessively
- Products
- Strategies
Dizziness
- Products
- Strategies
Headache
Memory Loss
- Products
-
Strategies
- Additional Training Time / Training Refreshers
- Checklists
- Color Coded System
- Color-coded Manuals, Outlines, and Maps
- Extra Time
- Recorded Directives, Messages, Materials
- Reminders
- Support Person
- Supervisory Methods
- Task Flow Chart
- Task Separation
- Verbal Cues
- Voice Recorders
- Written Forms and Prompts
- Written Instructions
Nausea
- Products
- Strategies
Respiratory Distress/Breathing Problem
-
Products
- Air Cleaners & Purifiers
- Air Cleaners - Chemical/Odor Removal
- Air Cleaning Systems
- Air Purifiers - No Ozone
- Air Purifiers for Multiple Chemical Sensitivity
- Air Quality Monitors
- Alternative Cleaning Supplies
- Carpet Alternatives, Sealants, and Sustainable Flooring
- Dry Erase/ Whiteboard Product Alternatives
- Floor Cleaning/Stripping Products - Chemical Sensitivity
- Low/No Odor Paints and Stains
- Masks - Smoke Allergy
- Natural and Synthetic Fragrance-free Hand Soap
- Odor Control
- Masks – General/Chemical/Allergen
- Personal Air Cleaner (Neckworn)
- Pet Dander Control
- Portable Air Purifiers
- Powered Air Purifying Respirator (PAPR)
- Masks - Respirator
- Respiratory Health Management
- Strategies
Skin Rash/Blisters/Sores
By Work Related Function
Air Quality/Irritants
- Air Cleaners & Purifiers
- Air Cleaners - Chemical/Odor Removal
- Air Cleaning Systems
- Air Purifiers - No Ozone
- Air Purifiers for Multiple Chemical Sensitivity
- Alternative Cleaning Supplies
- Carpet Alternatives, Sealants, and Sustainable Flooring
- Escape Hoods
- Flexible Schedule
- Floor Cleaning/Stripping Products - Chemical Sensitivity
- Low/No Odor Paints and Stains
- Mask Brackets and Frames
- Masks - Respirator
- Masks – General/Chemical/Allergen
- Odor Control
- Personal Air Cleaner (Neckworn)
- Powered Air Purifying Respirator (PAPR)
- Telework, Work from Home, Working Remotely
Situations and Solutions:
The following situations and solutions are real-life examples of accommodations that were made by JAN customers. Because accommodations are made on a case-by-case basis, these examples may not be effective for every workplace but give you an idea about the types of accommodations that are possible.

A clerical employee was having difficulty breathing due to coworker fragrances and new carpet fumes.
The employee was placed in a more enclosed cubicle with an air purification system, coworkers were asked to decrease or eliminate the use of fragrances, and time the employee spent in the office was reduced by altering face-to-face communication with coworkers to telephone, e-mail, or fax. It was also suggested that the carpet be detoxified or removed and replaced with a non-toxic floor covering like tile or wood.

A teacher diagnosed with sick building syndrome was required to attend weekly faculty meetings in the school building.
She usually taught class from a portable classroom outside of the building and could not be in the school building for extended time. JAN suggested that she use either a speakerphone or public address (PA) system from her classroom to listen in and participate in the meetings, be provided with meeting minutes, or attend the meetings and wear a respirator mask if she felt comfortable doing so.

An outside laborer was having difficulty doing his job due to the fumes from the diesel equipment he was operating.
A portion of his time was spent operating heavy equipment while the rest of his time was spent as a laborer. He was better able to function as a laborer as he was not as exposed to the fumes performing laborer functions. JAN suggested he consider the use of a respirator mask to filter out the diesel fumes. Alternatively, his job could be restructuring so he only worked as a laborer or he could be reassigned to a vacant position that would accommodate the need to avoid exposure to diesel fumes.

A graphic arts professional whose company was in the process of remodeling was having some difficulty working in the building due to paint fumes and construction materials.
It was too far into the process to change the products that were being used so the company needed some other way to accommodate. The employee was able to work from home on a temporary basis during the remodeling phase of her portion of the building. The employee already had a computer at home so the employer provided all of the necessary software, modem, and a new telephone line to be used for business purposes only. The company also provided a fax machine so the employee could fax materials back and forth between the work-site and her home office. To monitor her work performance, the employee was required to respond to e-mails in a given time period and to keep a log of all work completed. The employee attended weekly meetings by speakerphone.
JAN Publications & Articles Regarding Multiple Chemical Sensitivity
Publications
Consultants' Corner Articles
Events Regarding Multiple Chemical Sensitivity
- Upcoming Events
- Past Recorded Module
- Past In-person Training
- Past Exhibit Booths
- Past Remote Monthly Series Training
Presenters:
- Linda Carter Batiste , Director of Services and Publications
- Melanie Whetzel , Principal Consultant, Team Lead
- Alexis Popa , Consultant - Cognitive/Neurological Team
- Anna Saab (she/her) , Employment Specialist
Presentations
Transcripts
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Low-Key AT: Less-Obvious Options for Entry-Level WorkersMarch 16, 2022
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Accessibility as a Key to InclusionJuly 25, 2022
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Transition and Workplace Accessibility: What’s New in 2023?February 2, 2023
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Together Again: AT for Travel and Inclusive EventsFebruary 3, 2023
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2023 CSUNMarch 17, 2023
Presenters:
- Teresa Goddard , Lead Consultant – Assistive Technology Services
Presentations
Presenters:
- Teresa Goddard , Lead Consultant – Assistive Technology Services
Presentations
Presenters:
- Teresa Goddard , Lead Consultant – Assistive Technology Services
Presenters:
- Teresa Goddard , Lead Consultant – Assistive Technology Services
- Lisa Mathess , Principal Consultant, ADA Specialist
Presenters:
- Teresa Goddard , Lead Consultant – Assistive Technology Services
- Lisa Mathess , Principal Consultant, ADA Specialist
Presentations
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Ergonomics for TeleworkersDecember 8, 2020
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ADA and Accommodation Lessons Learned: COVID-19 EditionMarch 9, 2021
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Service and Emotional Support Animals in the WorkplaceApril 13, 2021
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Q&A with the Cog/Psych Team: Challenging Mental Health ScenariosMay 11, 2021
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Accessibility & Accommodations: How Employers & HR Professionals Can Prepare for Emerging Tech in the WorkplaceMay 20, 2021
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Accommodating Public Safety Workers with DisabilitiesJune 8, 2021
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ADA UpdateJuly 13, 2021
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AT Update: What’s new in 2021August 10, 2021
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Ask JAN! Expert Q&AOctober 14, 2021
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Return to Work After COVID-19 – Focus on Mental Health and Cognitive LimitationsNovember 18, 2021
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Accommodation Solutions for Autoimmune DisordersDecember 9, 2021
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Next-Level Accommodation and ADA ChallengesJanuary 13, 2022
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ADA and Accommodation Lessons Learned: Stay at Work/Return to Work EditionFebruary 10, 2022
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Ergonomics for TeleworkersMarch 1, 2022
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Accommodation Solutions for Executive Functioning DeficitsMarch 17, 2022
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Accommodation Solutions for Gastrointestinal DisordersApril 14, 2022
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Accommodation and ADA Considerations: Reproductive Disorders and PregnancyMay 12, 2022
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Personal Use or Reasonable Accommodation: What’s What?June 9, 2022
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ADA UpdateJuly 14, 2022
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AT Update 2022August 11, 2022
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Accommodation Solutions for Sleep DisordersSeptember 22, 2022
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Building a Disability-Inclusive OrganizationOctober 13, 2022
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Providing Reasonable Accommodations to Veterans with DisabilitiesNovember 10, 2022
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Ask JAN! Q&AJanuary 12, 2023
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Supports and Services: Accommodations with a HeartbeatFebruary 9, 2023
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What You Should Know About the Impact of Long COVID in the WorkplaceMarch 9, 2023
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Accommodation Solutions for Neurodivergent WorkersApril 13, 2023
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Accommodation Solutions for Fine Motor LimitationsMay 11, 2023
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What to Do When Performance and Conduct Factor Into the Accommodation EquationJune 8, 2023
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ADA Update 2023July 13, 2023
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Assistive Technology (AT) Update: What’s New in 2023August 10, 2023
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Accommodation Solutions: Substance Use DisorderSeptember 14, 2023
Presenters:
- Lisa Mathess , Principal Consultant, ADA Specialist
- Matthew McCord , Senior Consultant – Motor Team
Presentations
Transcripts
Presenters:
- Tracie DeFreitas , Program Leader, Director of Training, Services, and Outreach
- Teri Weber, SVP, Spring Consulting Group
Presentations
Transcripts
Teri Weber, ACI is a Partner with Spring Consulting Group. She has over 10 years of experience in health and welfare plan strategy, design, pricing, and implementation. She also works with absence management programs, including disability, family medical leave and leave of absence tracking. Her areas of expertise have allowed her to work with diverse employers and vendors to streamline processes and programs to meet the needs of insurers, administrators, employers and employees. Teri is on the Board for the New England Employee Benefits Council (NEEBC) and recently served as lead editor for the Disability Management Employer Coalition’s (DMEC) Return to Work Program Manual. Prior to joining Spring, Teri worked with Watson Wyatt, Buck Consultants and AON Consulting. In addition she was an Account Manager with Health Direct, Inc. Teri earned a BS at the University of Connecticut and a MBA at the University of Massachusetts. She holds an ACI designation and is a licensed broker in the states of MA and CT.
Presenters:
- Linda Carter Batiste , Director of Services and Publications
- Melanie Whetzel , Principal Consultant, Team Lead
Presentations
Transcripts
Handouts
Presenters:
- James Potts , Senior Consultant - Cognitive/Neurological Team
- Melanie Whetzel , Principal Consultant, Team Lead
Presentations
Transcripts
Presenters:
- Anne E. Hirsh , Director of Collaborations, Evaluation, and Reporting
- Bill Curtis-Davidson, Co-director of PEAT
- Martez Mott, Ph.D., Senior Researcher, Ability Group, Microsoft Research
- Tina Park, Ph.D., Methods for Inclusion Research Fellow at the Partnership on AI
Presentations
Transcripts
This session, produced in collaboration with JAN and the Partnership on Employment & Accessible Technology (PEAT), will introduce the potential impact of emerging tech on accommodations. Participants will learn how employers and HR professionals can help plan for an accessible workplace of the future, including the procurement of accessible technologies and potential accommodation needs of people with disabilities. PEAT, funded by the Office of Disability Employment Policy, U.S. Department of Labor, will interview technology leaders to find out how AI and XR will change the way we work and what these technologies could mean for the employment of people with disabilities.
This event takes place on Global Accessibility Awareness Day (GAAD).
Speaker Bios:
Bill Curtis-Davidson is a Co-Director and Sr. Consultant on Emerging Tech Accessibility at PEAT. In this role, he works to advance the accessibility of emerging workplace technologies, including XR and AI, to increase employment opportunities for people with disabilities. He partners with the disability community, tech companies, and the public to advance adoption of inclusive design and promising practices for tech accessibility. He serves on the External Advisory Board of the GA Tech Human-Computer Interaction Degree Program.
Martez Mott is a Senior Researcher in the Ability Group at Microsoft Research. His research is focused on designing, implementing, and evaluating intelligent interaction techniques that improve the accessibility of computing devices for people with diverse motor and sensory abilities. His current research focuses on identifying and overcoming accessibility barriers embedded in the design of virtual and augmented reality systems. Martez is passionate about improving diversity in the CS and HCI communities. He co-chaired the 2020 CHI Mentoring Workshop (CHIMe), is serving on the steering committee for CHIMe 2021, and co-founded the Black Researchers @ Microsoft Research group. Martez received his Ph.D. in Information Science from the Information School at the University of Washington. Prior to attending UW, he received his B.S. and M.S. in Computer Science from Bowling Green State University.
Tina M. Park is currently a Methods for Inclusion Research Fellow at the Partnership on AI, developing evidence-based methodologies for incorporating a more diverse range of stakeholders in the design and development of artificial intelligence. Prior to joining PAI, Tina has led efforts to cultivate supportive intellectual spaces for scholars of color at Brown University and nationwide. She has presented at top international conferences in her field such as the American Sociological Association, the Social Science History Association, the Population Association of America, and the Society for the Study of Social Problems, the Association of Collegiate Schools of Planning.
Presenters:
- Lisa Mathess , Principal Consultant, ADA Specialist
- Matthew McCord , Senior Consultant – Motor Team
- Tatum Storey, Consultant - Motor Team
Presentations
Transcripts
Presenters:
- Tracie DeFreitas , Program Leader, Director of Training, Services, and Outreach
- Jeanne Goldberg is a Senior Attorney Advisor in the Office of Legal Counsel at the U.S. Equal Employment Opportunity Commission.
Handouts
Presentations
Transcripts
Presenters:
- Teresa Goddard , Lead Consultant – Assistive Technology Services
- Matthew McCord , Senior Consultant – Motor Team
Presentations
Transcripts
Presenters:
- Tracie DeFreitas , Program Leader, Director of Training, Services, and Outreach
- Melanie Whetzel , Principal Consultant, Team Lead
- Teresa Goddard , Lead Consultant – Assistive Technology Services
- Lisa Mathess , Principal Consultant, ADA Specialist
Presentations
Transcripts
Presenters:
- James Potts , Senior Consultant - Cognitive/Neurological Team
- Melanie Whetzel , Principal Consultant, Team Lead
- Linda Carter Batiste , Director of Services and Publications
Presentations
Transcripts
Presenters:
- Tracie DeFreitas , Program Leader, Director of Training, Services, and Outreach
- Teresa Goddard , Lead Consultant – Assistive Technology Services
- Lisa Mathess , Principal Consultant, ADA Specialist
Presentations
Transcripts
Presenters:
- Tracie DeFreitas , Program Leader, Director of Training, Services, and Outreach
Presentations
Transcripts
Presenters:
- Tracie DeFreitas , Program Leader, Director of Training, Services, and Outreach
- Lisa Mathess , Principal Consultant, ADA Specialist
Presentations
Transcripts
Handouts
Presenters:
- Lisa Mathess , Principal Consultant, ADA Specialist
- Matthew McCord , Senior Consultant – Motor Team
Presentations
Transcripts
Presenters:
- Alexis Popa , Consultant - Cognitive/Neurological Team
- Melanie Whetzel , Principal Consultant, Team Lead
Presentations
Transcripts
Presenters:
- Matthew McCord , Senior Consultant – Motor Team
- Julie Davis , Consultant - Motor Team
Presentations
Transcripts
Presenters:
- Tracie DeFreitas , Program Leader, Director of Training, Services, and Outreach
Presentations
Transcripts
Presenters:
- Lisa Mathess , Principal Consultant, ADA Specialist
- Matthew McCord , Senior Consultant – Motor Team
Presentations
Transcripts
Handouts
Presenters:
- Tracie DeFreitas , Program Leader, Director of Training, Services, and Outreach
- Jeanne Goldberg - Senior Attorney Advisor, Office of Legal Counsel, Equal Employment Opportunity Commission (EEOC)
Handouts
Presentations
Transcripts
Presenters:
- Teresa Goddard , Lead Consultant – Assistive Technology Services
- Matthew McCord , Senior Consultant – Motor Team
- Christy McCune , Consultant - Sensory Team
Presentations
Handouts
Transcripts
Presenters:
- Alexis Popa , Consultant - Cognitive/Neurological Team
- Melanie Whetzel , Principal Consultant, Team Lead
Presentations
Transcripts
Presenters:
- Tracie DeFreitas , Program Leader, Director of Training, Services, and Outreach
- Ellice Switzer, EARN Workplace Disability Inclusion Associate
Presentations
Transcripts
Ellice Switzer, EARN Workplace Disability Inclusion Associate
Ellice is an Extension Associate with the K. Lisa Yang and Hock E. Tan Institute on Employment and Disability. She provides content development, training and technical assistance for EARN. As an Extension Associate, she provides national technical assistance and training on topics related to disability and employment, and U.S. disability policy. Her areas of focus include employer practices to support workforce disability inclusion, demand-side strategies to improve employer engagement among disability service providers and evidence-based practices to support post-school success for youth with disabilities.
Presenters:
- James Potts , Senior Consultant - Cognitive/Neurological Team
- Melanie Whetzel , Principal Consultant, Team Lead
Presentations
Transcripts
Presenters:
- Lisa Mathess , Principal Consultant, ADA Specialist
- Melanie Whetzel , Principal Consultant, Team Lead
- Teresa Goddard , Lead Consultant – Assistive Technology Services
- Tracie DeFreitas , Program Leader, Director of Training, Services, and Outreach
Presentations
Transcripts
Presenters:
- James Potts , Senior Consultant - Cognitive/Neurological Team
- Lisa Mathess , Principal Consultant, ADA Specialist
- Tracie DeFreitas , Program Leader, Director of Training, Services, and Outreach
Presentations
Transcripts
Presenters:
- Tracie DeFreitas , Program Leader, Director of Training, Services, and Outreach
- Terri Rhodes, Chief Executive Officer, Disability Management Employer Coalition (DMEC)
- Bryon Bass, Senior Vice President Workforce Absence and Disability Practice Leader, Sedgwick
- Susanne Bruyere, Co-Director and Co-Principal Director, Employer Assistance and Resource Network on Disability Inclusion (EARN)
Handouts
Presentations
Transcripts
Presenters:
- Melanie Whetzel , Principal Consultant, Team Lead
Presentations
Transcripts
Presenters:
- Julie Davis, Consultant - Motor Team
- Matthew McCord, Senior Consultant - Motor Team
Presentations
Transcripts
Presenters:
- Lisa Mathess, Principal Consultant, ADA Specialist
- Melanie Whetzel, Principal Consultant, Team Lead
- Tracie DeFreitas, Program Leader, Director of Training, Services, and Outreach
Presentations
Transcripts
Presenters:
- Tracie DeFreitas, Program Leader, Director of Training, Services, and Outreach
- Jeanne Goldberg, Equal Employment Opportunity Commission (EEOC)
Presentations
Transcripts
Presenters:
- Matthew McCord, Senior Consultant – Motor Team
- Teresa Goddard, Lead Consultant – Assistive Technology Services
- Jose Gonzalez Lopez, Consultant — Sensory/Motor Teams
Presentations
Transcripts
Presenters:
- James Potts, Senior Consultant - Cognitive/Neurological Team
- Melanie Whetzel, Principal Consultant, Team Lead
- Linda Batiste, Director of Publications and Services
Presentations
Transcripts
Other Information Regarding Multiple Chemical Sensitivity
External Links
Organizations
- Job Accommodation Network
- Office of Disability Employment Policy
- American Industrial Hygiene Association
- Beyond Pesticides
- Chemical Injury Information Network
- Chemical Sensitivity Foundation
- Environmental Health Network
- Invisible Disabilities Association
- MCS Advocacy.com
- National Air Filtration Association
- National Center for Biotechnology Information
- National Fibromyalgia & Chronic Pain Association
- National Institute of Environmental Health Sciences
- The Enviromental Illness Resource
- United States Enviromental Protection Agency
- Women for a Healthy Environment