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Allied Association Blog: Repetitive Motion Injuries and the Importance of Ergonomics in the Cannabis Industry

By Alex Hearding, Chief Risk Management Officer, National Cannabis Risk Management Association

Repetitive motion injuries, also known as musculoskeletal disorders (MSD) are temporary or permanent injuries to muscles, nerves, ligaments, and tendons caused by performing the same motion over and over again. Common repetitive motion injuries are carpal tunnel syndrome and tendonitis. According to the Bureau of Labor Statistics in 2013, repetitive motion injuries cases accounted for 33% of all worker injury and illness cases.

These injuries can be mitigated or controlled through ergonomics. Ergonomics is defined as: “The scientific discipline concerned with the understanding of the interactions among humans and other elements of a system, and the profession that applies theory, principles, data, and methods to design in order to optimize human well-being and overall system performance.” Or more simply put: ‘Fitting the job to the person.’ The goal is to eliminate discomfort and risk of injury due to work. Ergonomics can prevent or reduce work-related MSDs and increase work efficiency. 

Every industry and business has tasks that require repetitive motion, the cannabis industry and businesses are no exception. Cannabis operations have some motions and tasks that are similar to many industries, like lifting heavy objects, computer work, and standing for long periods of time. Cannabis operations also have some motions and tasks that are similar to other agricultural operations like pruning and harvesting. 

But there is a task and motion in the cannabis industry that is uniquely its own: trimming. There are many different methods to marijuana trimming, including: pre-harvest trimming and pruning, wet trimming, dry trimming, and machine trimming. All trimming methods have the same goal: to manicure the flower (or bud) to its final product ready for the customer or patient. The process is a tedious one where the trimmer removes the leaves of the marijuana flower with scissors while leaving the calyx and resin (the good parts of the bud). The quality of smoke, vapor, and ultimately the consumer’s experience is affected by the quality of the trim job. 

Traditionally, most marijuana trimming has been done seasonally around the harvest season. Most cannabis grown outdoors is harvested around October and it is common for cannabis farms to have ‘trim crews’ help them for a couple of months. As medical and adult-use laws expand, so do indoor and greenhouse operations. These operations are capable of ‘perpetual harvests’ meaning they can harvest more often; this has to do with the ability to control light and dark cycles. This means many operations can plan to harvest plants monthly, weekly, or daily if they choose. This has changed the demand for trimmers from largely seasonal you year-round demand, increasing the trimmers’ likelihood of repetitive motion injuries.

There is still a lot of confusion with workers in the industry about their rights. While many states have legalized marijuana, it is still federally illegal. Many workers do not know while it is federally illegal, they still have the same federal worker rights and protections every other U.S. worker has including the rights under the Occupation Safety and Health Act of 1972. Under this law, employers must provide a safe workplace, train employees in the hazards of the workplace, and inform the employees of the rights to report work-related injuries. Cannabis industry workers must also be covered by workers’ compensation if they become injured at work.

The lack of awareness about worker rights has likely led to the under-reporting of these injuries. As awareness of worker rights grows, the reporting workers’ compensation claims of these work-related MSD injuries will likely grow too. Pinnacol, Colorado’s largest workers compensation provider, reported that strains were the most common injury reported by cannabis workers in 2018. This should concern everyone in the industry. Cannabis businesses should heed the warning signs and keep their workers safe by developing their own internal ergonomic processes and practices for their operations. 

California is in a unique position as when it comes to cannabis and ergonomics. California is the largest producer of cannabis and has more stringent ergonomic standards. If a California company has more than one employee report a repetitive motion injury, they are required to establish an ergonomic program to reduce repetitive motion injuries. These ergonomic programs require:

  1. A worksite evaluation
  2. Control of exposures which have caused the repetitive motion injury 
  3. Training of employees

Additionally  employers in California are required to have an effective written Injury and Illness Prevention Program (IIPP), to comply with the California Code of Regulations, title 8, section 3203. The IIPP must include procedures to identify and correct health and safety hazards in the workplace and provide effective training to all employees so they can perform work safely.

The cannabis industry is still immature and searching for best practices of operations. While many workers and operators in the industry understand the need for ergonomic standards the reality is that ergonomic standards still need to be defined. This has been the goal of the National Cannabis Risk Management Association (NCRMA) and Dr. Chris Hughes with Atlas Performance Technologies, LLC. They have developed four courses to educate the industry on ergonomics, including: Introduction to Cannabis Ergonomics, Lift Like a Pro, Prune Like a Pro, and Trim Like a Pro. These courses are available through the NCRM Academy and can be found online here: https://ncrma.net/ncrmacademy/ These courses are designed for entry level cannabis workers to inform them of their rights, the ergonomic hazards, proper hazard controls, and best practices to stay safe and increase productivity. 


Alex Hearding has an educational and professional background as a water and soil scientist and safety professional. He has legally cultivated marijuana as a medical caregiver and as a facility manager in a licensed greenhouse. He has experience starting marijuana businesses including license application, facility design, construction, operational development, and management. He currently provides services including occupational safety & health services and training and risk management for the cannabis industry. 

 

Member Blog: While You Are At Home (Part 2) – Time To Prepare For Achieving GMP Certification 

by Merril Gilbert, CEO of Trace Trust and David Vaillencourt, CEO of The GMP Collective

In our last article, we discussed the benefits of Good Manufacturing Practices as a means to increase productivity, efficiency, and to drive accountability within an organization. With cannabis and hemp businesses negatively impacted by the ongoing COVID-19 pandemic, tight budgets are even tighter and existing room for errors are tighter than ever. As we begin to carefully rise out of the pandemic, failing to address recurring errors and inefficiencies will be catastrophic. In this follow up article, we dive into a few key systems that make up a GMP facility that you can get started on regardless of whether you are at home or on-site.

Internal (Self) Auditing

Even the most thorough and diligent people make mistakes or forget something from time to time. When you have a business that requires multiple people to make it run, the chances of a mistake increase exponentially. Left unchecked, this can result in catastrophic issues such as inventory reconciliation issues, customer dissatisfaction, product nonconformities, recalls, and even lawsuits. An internal audit program utilizes checklists to periodically conduct independent reviews of all operational areas at predefined intervals. Non-conformances are identified, and corrective action plans are implemented. This best practice is not only a GMP requirement but drives continuous improvement within your organization, ensuring: 

  • List out all functional areas
  • Generate a matrix to establish the frequency of auditing for each functional area (we recommend every functional area be audited at least once per year – you can spread the auditing workload out over a calendar year rather than doing a full business audit once a year).
  • Conduct reviews of relevant procedures, documents, and records within those areas 
  • Document the findings (including non-conformities)
  • Develop corrective action plans with the functional area manager to reconcile these non-conformities
  • Establish a timeline for closeout
  • Verify the effectiveness of the corrective action by conducting a spot audit 30-days later

Supplier Management 

Did you encounter new challenges with the ability of your existing suppliers to provide you with the quality and timeliness of your raw materials, parts, or ingredients for your operation? Supplier management is a key component of a GMP program and ensures that you are able to deliver on your promises to the final client, be it the customer/patient, or another business in the supply chain. Items to include in a supplier management program include:

  • A Vendor Qualification Form
  • Quality Agreements
  • Right to Audit
  • Terms and conditions regarding product quality (specifications), and % of on-time performance
  • Documentation – upon delivery and retained over time

Review your existing contracts and supplier program. Don’t have a formal program in place? Get one started now based on existing relationships and their frameworks, and enjoy the benefits of this program as the economy slowly reopens.

Document Control

Do you have a list of all procedures, forms, and record books? Are they all stored in one binder in the Compliance office or do personnel have access via an electronic Document Management System. How do you ensure when a revision to a document is made that the old one is removed from circulation and not accidentally used by an employee? Document control is a pesky activity that many see as an administrative burden. However, discovering that a new formulation recipe was not being followed by a few employees because they were still using an outdated copy of the procedure for the last 3 months will justify any administrative burden and then some. Fortunately, being the year 2020, affordable electronic systems exist to streamline the process of effectively documenting and communicating all changes to relevant personnel, keeping your business compliant and operating efficiently.

Cleaning and Sanitation Validation

It is likely you increased your cleaning and sanitation regiment in light of COVID-19. How will you know when it is appropriate to scale back to pre-COVID regimens? Do you have any evidence that your prior cleaning and sanitation procedure was effective? Many companies are surprised to hear that their procedures are grossly ineffective. In one example, a company required personnel to wear Crocs in the ‘clean’ production areas. They also wore copious amounts of PPE (fresh lab gown and pants, hair nets, face shields) any time they went into a cultivation room. However, they suffered from significant pest outbreaks that seemed to spread from room-to-room with ease. They even had sticky mats outside of every room. The problem? The Crocs! A simple ATP test revealed bioburden levels that would make a college football port-o-potty seem clean. They were able to reduce their PPE levels by reorganizing workflows and periodically disinfecting the crocs, and their pest outbreaks disappeared within 4 weeks!

The cost – a few hundred dollars in testing for pathogens every week as part of their cleaning and sanitation program. By validating their results (running multiple tests and coming up with the same non-detect result) they were confident that their processes were effective (or as we call it in the GMP world – Validated).

Risk Management and Business Continuity

This final one is not an explicit GMP requirement, but, when built into your overall Quality System can provide you with quantifiable benefits. One of the other business disruptions that became evident in the COVID-19 era was how many companies did not have an effective Workplace Crisis Management Plan in place. Along with the GMP audit process it is recommended to review and update business continuity plans. What was learned during COVID-19? Where are gaps in the chain of communication, processes, and policies? How can we improve our training programs? Taking time to improve and adapt operating procedures will continue to build trust and effectiveness in your business.


Merril Gilbert, Co-Founder and CEO of Trace Trust and A True Dose™ and hGMP™ the first universal independent certification programs for dose accuracy in legal Cannabis and Hemp derived ingestible products. Always at the forefront of emerging trends on the future of food, technology, health and wellness, she leverages 25 years of experience of creative development, operations and investment for everything food and beverage. Current Chair of the NCIA Education Committee.

David Vaillencourt, CEO of The GMP Collective. David and his team at The GMP Collective bring decades of pharmaceutical and food industry best practices to cannabis and hemp. He holds a Master’s Degree, is a Certified Food Systems Auditor and brings a decade of experience in various governmental scientific work. David supports the industry in many ways, including serving as an Officer on ASTM International’s D37 Cannabis Standards Development Committee, participation in NCIA’s Facility Design Committee, and has also developed cannabis training content for college courses.

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