Single-Use Plastics Audit Guidance
Introduction to Single-Use Plastics
Single‑use plastics (SUPs) are products designed to be used once and discarded, from packaging and beverage bottles to food containers and cutlery. Their convenience comes with significant environmental impacts - contributing to waste, harming marine ecosystems, and adding to carbon emissions. While replacing SUPs is important, switching to alternatives isn’t always straightforward; some substitutes can carry higher environmental footprints.Understanding how and where SUPs are used within your business is a vital first step in reducing them responsibly.
Economic, Social and Economic Benefits of Reducing SUPs
Economic Benefits of Reducing SUPs
Transitioning away from SUPs can provide various economic advantages:
- Initial investments in reusable alternatives can lead to long-term cost savings by reducing the need for constant purchases.
- The annual cost of litter clean-up in Scotland is estimated at £46 million, much of which is plastic related.
- Opportunities for innovation in sustainable products can open new market segments, enhancing business competitiveness.
Social Benefits of Reducing SUPs
Reducing SUPs can enhance social outcomes and community engagement:
- Improved public health results from fewer toxins and microplastics entering the food chain.
- Businesses can foster community initiatives, strengthening ties and promoting a sense of purpose.
- Companies adopting sustainable practices can enhance their brand image, leading to increased customer loyalty.
Environmental Impact of SUPs
Reducing SUPs can yield substantial environmental benefits:
- Waste reduction leads to fewer plastics in landfills, which can take hundreds to thousands of years to degrade.
- Protecting marine life is crucial, as Scotland's seas host about 8,000 species and face high microplastic pollution.
- Plastic production contributes significantly to Scotland's carbon footprint, accounting for 5% of total greenhouse gas emissions.
What You Need to Know About SUP Legislation
Legislative Drivers for SUPs
Scottish regulations reflect a commitment to sustainability and the reduction of SUPs.
- A ban on SUPs, such as plastic straws and cutlery, has been in effect since 2022.
- The Deposit Return Scheme, launching on 1 October 2027, incentivises recycling through a deposit on drinks containers.
- Extended Producer Responsibility (EPR) holds producers accountable for the lifecycle of their products.
Implications of Regulations for Businesses
Understanding the implications of regulations is essential for compliance and opportunity.
- Non-compliance can lead to fines and reputational damage, necessitating regular legislative reviews.
- Participation in schemes like the Deposit Return Scheme can enhance business reputation and provide financial returns.
- The market for eco-friendly products is growing, offering competitive advantages for businesses that adapt.
Overview of Common Types of Plastics
Plastics are categorised by identification codes that indicate their type and recyclability.
- The seven types of plastics include PET, HDPE, PVC, LDPE, PP, PS, and other plastics.
- PET and HDPE are widely recycled, while PVC and PS are not easily recyclable.
- Understanding these codes aids in effective waste management and recycling communication.
Applying the Waste Hierarchy for Plastics
The waste hierarchy prioritises waste management strategies to minimise environmental impact.
- The hierarchy emphasises reducing plastic use, reusing items, recycling, recovering energy, and landfill disposal as a last resort.
- Businesses should challenge the necessity of single-use items and promote reusable alternatives.
- Ensuring only easily recyclable polymers are purchased can enhance sustainability efforts.
Single-Use Plastics Audit Guide
The guide below helps organisations find out where they are using SUPs and how to reduce them. It walks you through a simple six‑step audit process, from getting ready to carry out the audit through to creating an action plan. Think of this guide as a helpful starting point for spotting opportunities to cut down on plastics.
Adapt to your needs
Every organisation is different, so you can adapt the steps to suit your own needs and resources. Use the Single‑Use Plastics Audit Templates document below - it includes both a ready‑to‑use Waste Audit Template and a fully completed example Plastic Audit to help you get started.
Six-Step Single-Use Plastics Audit Process
Step 1: Prepare for the Audit
Effective preparation is crucial for a successful audit of single-use plastics.
- Assemble a multidisciplinary team to oversee the audit, including finance, facilities management, and procurement representatives.
- Define the scope of the audit, including locations and types of SUPs to be assessed.
- Establish a clear timeline with milestones to guide the audit process.
- Identify Personal Protective Equipment (PPE) needed for each audit location.
- Prepare essential data-collection tools.
- Conduct a risk assessment for waste‑handling and site-specific hazards and create an audit proforma using the Single-Use Plastic Audit Templates to ensure consistent data recording.
Prepare essential data collection tools
Data collection tools are essential for ensuring accurate assessments and compliance verification during audits. Examples include:
- Accurate weighing scales
- Digital or paper recording method
- Camera.
Identify the PPE needed
PPE protects against biological, chemical, and physical hazards. Examples include:
- Lab coats
- Gloves
- Hard hats
- High-visibility vests
Step 2: Gather Existing Data
Reviewing existing data is essential for understanding SUP usage within an organisation.
- Analyse waste management contracts to identify service sites, waste segregation systems, and collection frequencies.
- Review procurement data to identify the range of SUP items used and their associated costs.
- Correlate waste and procurement data to identify patterns and high-consumption departments.
- Verify the completeness of waste management data: Check contract details, service schedules, and site lists to ensure your assessment covers the entire organisation.
- Cross‑check data from multiple sources: Compare waste contracts, procurement records, and on‑site observations to build an accurate picture of SUP usage.
- Capture context alongside numbers: Note reasons for high usage (e.g., operational needs, customer demand, health and safety requirements) so recommendations are realistic.
- Assume that all plastics identified are single‑use: Clarify whether items are genuinely single-use or reused informally within teams.
- Overlook informal purchasing routes: Ad‑hoc buys, petty cash purchases, and team‑level ordering can hide significant volumes of SUPs.
- Ignore contracts or policies already in place: Existing agreements may constrain collection systems or limit immediate changes, so avoid recommending actions that can’t be implemented.
Step 3: Conduct a Single-Use Plastics Audit
A thorough audit involves both physical inspections and staff insights to quantify plastic usage.
- Identify, count, and weigh SUP items using structured data recording methods.
- Inspect waste bins to assess fullness and identify main contributors to plastic waste.
- Gather insights from staff regarding their usage and disposal practices, as well as from suppliers about alternatives.
Key Audit Areas
Key audit areas include high-usage locations such as:
- Cafeterias and breakrooms where SUPs like cutlery and packaging are common.
- Office spaces which often generate plastic packaging from equipment and supplies.
- Laboratories which frequently use SUPs for research and testing activities.
- Waste-disposal areas where bins should be checked to ensure SUPs are entering the correct recycling or disposal streams.
Step 4: Analyse Data to Generate Insights
Data Cleaning and Validation
Before you dive into analysis, it is imperative that your data is both clean and reliable.
- Clean data by removing duplicates and identifying outliers.
- Normalise data to a common standard for comparison.
Data Visualisation
Visualising data with graphs and charts makes it easier to interpret and understand performance.
- It can highlight areas for improvement and reveal inefficiencies.
- It may be time‑consuming for large datasets or organisations with multiple locations but often speeds up insight‑gathering.
Interpretation of Findings
Analyse plastic waste data to assess recycling efficiency and identify areas for improvement.
- Provides a comprehensive understanding of the current situation.
- Crucial for formulating actionable recommendations.
Usage and Waste Data Analysis
Analysing plastic waste data helps quantify usage and recycling rates, guiding future efforts.
- Calculate total SUPs usage by department or item type.
- Assess the proportion of plastic waste recycled.
- Estimate additional waste that could be recycled with better segregation practices.
Classification by Resin Code
Categorising plastics by resin codes provides insights into the types of plastics used within the organisation.
- Common resin codes include PET, HDPE, PVC, LDPE, PP, and PS.
- Weigh and tally the frequency of plastic items in each department.
- Identify high-usage areas, such as cafeterias, for targeted interventions.
Calculating Environmental Impact
Understanding the carbon emissions associated with plastic usage is crucial for assessing environmental impact.
- Use DEFRA's conversion factors to calculate carbon emissions from plastic types.
- Example: 200 kg of HDPE with a conversion factor of 1.5 results in 300 kg CO2e emissions.
Financial Implications of Plastic Usage
A financial analysis of plastic usage helps understand procurement and disposal costs.
- Calculate costs associated with procuring and disposing of each type of plastic.
- Factor in potential rebates for recyclable plastics to assess net expenditure.
Identifying Main Consumable Products
Identifying and ranking SUP items based on quantity, weight, and cost helps focus reduction efforts.
- Rank items to identify those with the highest financial and environmental impacts.
Asking the Right Questions for Insights
Posing critical questions during data interpretation reveals deeper insights into plastic usage.
- Identify gaps in data and unexpected trends.
- Compare departmental performance and identify successful practices.
Step 5: Create a Shortlist and Identify Alternative Solutions
Once you have analysed your data, the next vital step is to harness this information for actionable decision-making.
Undertake a prioritisation exercise
Conduct a prioritisation exercise to identify which single‑use plastic items should be the main focus. This helps optimise resources, align actions with organisational goals, and achieve quick early wins.
- Establish criteria before starting, based on your organisation’s sustainability objectives. Useful criteria include:
- Environmental impact (e.g., carbon, water, energy, land use)
- Volume of usage (how often and how much the item is used)
- Ease of replacement (cost, availability, and practicality of switching)
- Evaluate each item using a Red (1), Amber (2), Green (3) scoring system as shown in the example prioritisation exercise below.
- Analyse the audit data by scoring each single‑use plastic item against your chosen criteria, using quantitative measures to reduce subjectivity.
- Apply a numerical rating system (e.g., 1–10) and add weightings if some criteria are more important than others.
- Multiply each score by its weighting to calculate a cumulative score for every item.
- Rank items in descending order to identify priority issues.
- Create a Top 10 list to highlight the most urgent items, providing a manageable focus for exploring alternatives and tracking progress.
Identifying alternative solutions
Once the Top 10 list is set, identify alternative solutions for each item by applying the waste hierarchy. Prioritise eliminating avoidable plastics first, then work down the hierarchy if removal isn’t possible.
Waste Hierarchy Questions:
Reduce
- Can you eliminate the product or packaging entirely?
- Can you meet the outcomes in a different way?
- Can you use fewer materials to meet your needs?
Re-use
- Can the packaging be refilled with the same product next time?
- Can your product or packaging be re-used?
- Are re-usable alternatives available?
- Can the item be easily repaired?
Recycle
- Are you buying products or packaging that can be recycled by your waste management contractor?
- Does the recycled item provide any value?
Remember to
- Research alternatives carefully to ensure replacements are genuinely more sustainable across their full lifecycle, not just non‑plastic substitutes.
- Use sources such as academic literature, industry reports, supplier discussions, and input from staff who use these items daily.
- Assess feasibility by considering more than cost alone. Review implementation needs, scalability, and alignment with organisational goals through cost‑benefit analysis, carbon impact assessment, logistical requirements, and regulatory compliance.
- Where helpful, run pilot tests to confirm the practicality of each alternative in real‑world conditions.
Examples of Alternative Solutions
The table below summarises alternative solutions for common single‑use plastics, assessing each option for environmental impact, cost‑effectiveness, and ease of implementation.
Each measure is rated using a Red (1), Amber (2), Green (3) system, where higher scores indicate a more preferred environmental outcome, greater cost savings, or easier implementation. The table provides example alternatives and their potential benefits.
Step 6: Develop an Action Plan for Implementation
Develop an action plan by discussing the findings with relevant stakeholders and agreeing on actions to reduce the most significant plastic waste. Involving multiple departments encourages meaningful input and shared ownership.
The action plan should include:
- Priority improvement measures based on your earlier prioritisation.
- Clear implementation steps for each measure.
- Expected technical, environmental, or cost‑saving benefits.
- Defined roles and responsibilities.
- Realistic timescales for completion.
Action Plan Example
Implementing your action plan
Implementation requires coordinated teamwork, with detailed plans for specific improvement projects where needed.
- Keep everyone involved and updated to sustain interest and motivation.
- Make alternatives clear, visible, and easy to access.
- Ensure people understand both how to make the change and why it matters.
- Support behaviour change (e.g., provide refill stations if promoting reusable bottles).
Regularly reviewing progress
Regular reviews of the action plan's execution are vital for tracking progress and making adjustments.
- Involve relevant stakeholders in quarterly reviews.
- Present data in an actionable format and assess performance against pre-established criteria.
- Share successes to maintain engagement and support further initiatives.
- Remember sustainability requires ongoing effort and regular reassessment.
