ENE53–Ultra Low Sulfur Diesel & Biodiesel Statewide Contract: This is a Statewide Contract (SWC) for the purchase and delivery of Ultra Low Sulfur Diesel (ULSD) and Biodiesel. This contract has an additional category, Category 4, which is the option to lock in a fixed price on the purchase of Biodiesel. 

To participate in this contract, Eligible Entities must contact the awarded vendor, found on the Vendor List, for ULSD or Biodiesel purchases. The Participant must remain with the vendor for twelve months or through the remainder of the contract term. The vendors must request this commitment in writing.

If a buyer faces issues with their assigned Category 1 or 2 vendor (e.g., unmet supply demands), they may solicit quotes from other vendors within those categories, ensuring a broader selection of suppliers.

Per Executive Order 594 Leading By Example: Decarbonizing and Minimizing Environmental Impacts of State Government, all executive branch agencies, public institutions of higher education, and the Massachusetts Bay Transportation Authority (MBTA) non-revenue fleet must:

• Ensure that any diesel fuel purchased for use in motor vehicles owned and operated by Commonwealth parties consists of at least 5% biofuels (that is, B5). Biofuels must meet the minimum fuel content specifications outlined in the Leading by Example guidance.
• Explore and implement strategies to increase the biodiesel blend percentage, while carefully considering and mitigating any potential technical or operational challenges.
• Prioritize biodiesel fuel usage in compatible equipment. If biodiesel isn't readily available, is cost-prohibitive, or has identified performance limitations, agencies may be exempt from using it but should still strive to utilize biodiesel fuels where appropriate.

NOTE: This contract may be used to procure the goods or services described in this user guide at any dollar amount. Any limitations, including for procurements involving construction, are outlined in this Contract User Guide.

This contract contains Environmentally Preferable Products and service-disabled veteran-owned business.

Link to Master Contract Record with Request for Response (RFR): Master Blanket Purchase Order PO-25-1080-OSD03-OSD03-33382

Benefits and Cost Savings

Statewide Contracts are an easy way to obtain benefits for your organization by: 

• Leveraging the Commonwealth’s buying power
• Simplifying the solicitation process
• Providing contracting expertise
• Enhancing vendor relationships through proactive management and oversight
• Offering competitive pricing
• Offering Prompt Payment Discounts (PPD), which is a percentage discount given to the buyer if the invoice is paid within a specified time, in accordance with the Commonwealth’s Bill Paying Policy

• Partnering with a pool of qualified and experienced vendors 
• Improving the availability of environmentally preferable products

This contract includes four (4) categories of products and services listed as follows:

Category 1: Ultra Low Sulfur Diesel (ULSD)
Category 2: Biodiesel
Category 3: Fixed Pricing for ULSD 
Category 4: Fixed Pricing for Biodiesel

The following is a complete list of the types of organizations generally allowed to use the Operational Service Division’s (OSD's) Statewide Contracts (SWCs). Some SWCs may be open to additional organizations, and some are more restricted in usage.

• Cities, towns, districts, counties, and other political subdivisions
• Executive, Legislative, and Judicial Branches, including all departments and elected offices therein
• Independent public authorities, commissions, and quasi-public agencies
• Local public libraries, public school districts, and charter schools
• Public hospitals owned by the Commonwealth of Massachusetts
• Public institutions of higher education
• Public purchasing cooperatives
• Non-profit, UFR-certified organizations that are doing business with the Commonwealth
• Other states and territories and their cities, towns, districts, counties, other political subdivisions, and public institutions of higher education without prior approval from the State Purchasing Agent 
• Other entities when designated in writing by the State Purchasing Agent
  

All orders should reference ENE53 to ensure buyers get statewide contract pricing. 
To verify the commodity price for diesel fuels for Category 1 and Category 2: 

1. Go to COMMBUYS.
2. In the Search field, enter ENEFY26.
3.  In the drop-down list, select Blankets, and then click the Search icon (magnifying glass). The Results table displays.
4. Under the Blanket # column, click on the PO link. The selected Master Blanket Purchase Order displays.
5.  Navigate to the Agency Attachments section and select the file corresponding to the desired date.
6. NOTE: The Less Than Truckload Differential (LTL) pricing is applicable for all deliveries under 7,999 gallons. The Truckload Differential (TL) pricing is applicable for deliveries of 8,000 gallons or more.

Category 1 and Category 2

To ensure reliable and efficient delivery, this contract offers a year-round blend of B5 Ultra Low Sulfur Diesel (ULSD), with the option to purchase blends of B10, B15, and B20 at a fixed differential price. This price is calculated by applying the low wholesale Boston price that is published daily by the Oil Price Information Service (OPIS), formerly the Journal of Commerce (JOC). All taxes and federal fees are included.

Pricing is calculated as:

*Listed as “w/additive”. 

Category 3

To ensure efficient ULSD delivery at a capped price, the contract establishes a fixed, "not-to-exceed" price, with contract-listed discounts and pricing acting as a maximum ceiling, allowing for further negotiation based on market conditions.

Category 4

To ensure efficient Biodiesel delivery at a capped price, the contract establishes a fixed, "not-to-exceed" price, with contract-listed discounts and pricing acting as a maximum ceiling, allowing for further negotiation based on market conditions.

Differential Pricing for Category 1 and Category 2

Note: For the following tables, the Less Than Truckload Differential (LTL) pricing is applicable for all deliveries of 7,999 gallons or less. The Truckload Differential (TL) pricing is applicable for deliveries of 8,000 gallons or more.

ULSD Differential Pricing–Effective 08/1/24:

Biodiesel Differential Pricing–Effective 8/1/24:

Fixed Pricing for Category 3 and Category 4

Please note the following requirements:

• The delivery of ULSD and Biodiesel is purchased at a fixed price increase above the New York Mercantile Exchange-weighted (NYMEX-weighted) average price for ULSD and biodiesel.
• The weighted average, calculated at the time of purchase, will be determined by averaging the number of months and gallons needed. 
• Eligible Entities are strongly encouraged to solicit quotes from vendors in zones with multiple awardees. 
• Vendors will collaboratively work with individual purchasing parties to strategically determine the optimal time to lock into NYMEX, ensuring the most advantageous pricing for all involved.
• Upon NYMEX lock-in by purchasing entities, the volume will be verified.
• The Purchasing Entities reserve the right to roll over purchases to additional months if needed.
• Prior to entering into an agreement, it is the responsibility of the vendor and Purchasing Party to come to a decision on how the unused gallons will be handled and to ensure that this agreement is in writing.
• The fixed adder is Ceiling/Not-to-Exceed, which means the contract's published pricing, including discounts, is a maximum price or 'not-to-exceed' limit and can be subject to further negotiation.
• Eligible Entities retain the right to negotiate lower fixed adders with vendors based on total gallon volume.
• A minimum of 42,000 gallons must be purchased by the Eligible Entity. It is at the discretion of the vendor to enter into any agreements less than 42,000 gallons.

Category 3–Fixed Pricing for ULSD:

Category 4–Fixed Pricing for Biodiesel:

Applicable Taxes/Fees

The following additional taxes and federal environmental fees are to be billed as separate line items on invoices:

• State Excise Tax for on-road use: $0.24 cents per gallon
• Federal Leaking Underground Storage Tank (LUST): $0.001 per gallon
• Federal Oil Spill Liability Trust Fund: $0.00214 per gallon
• Massachusetts Uniform Oil Response Fee: $0.00119 per gallon
• Inflation Reduction Act Federal Superfund Tax: $0.17 per barrel or $0.00405 per gallon. The tax will be adjusted annually for inflation beginning January 1, 2025.

Purchases made through this contract will be direct, outright purchases.

This contract offers several purchasing options, outlined as follows:

• Quote Solicitation: Buyers can solicit quotes from multiple vendors (see the Vendor MBPO Listing), award vendors, and place orders through COMMBUYS. A solicitation-enabled contract allows the buyer to solicit quotes from vendors who have Master Blanket Purchase Orders (MBPOs) or Statewide Contracts in COMMBUYS. The buyers can create a solicitation-enabled bid using a release requisition, converting the requisition to a bid, and then requesting quotes from eligible vendors.
  
  See the How to Request Quotes from Vendors on Statewide Contracts job aid for more details.
  
  Quote solicitation will be for Categories 3 and 4, or in the event of a vendor issue with Categories 1 and 2 (for example, a vendor assigned to a zone who cannot meet demand).
  
  
• Direct Purchase of Fixed Price Items on COMMBUYS: Used for products and services with fixed pricing, viewable in vendor catalogs or price files. See the Vendor MBPO Listing for a list of eligible vendors. The buyer can submit a request for goods and services from a Statewide Contract (SWC) or a Departmental Contract. This option is for users with Basic Purchaser or Department Access privileges in COMMBUYS. Once the requisition is approved, a Purchase Order (PO) is generated and can be sent to the vendor. Requisitions are documents used to request goods and services. A requisition is the first document used to generate a PO. 
  
  See the How to Make a Statewide Contract Purchase in COMMBUYS job aid for more details. 
  
  This method should be used for Categories 2 and 4 (Fixed-Pricing for ULSD/Fixed-Pricing for Biodiesel)
  
  
• Direct Purchase of Non-Fixed Price Item ($0 Line Item) on Vendor’s MBPO: Applicable to products and services with flexible, negotiable pricing rather than fixed rates. See the Vendor MBPO Listing for a list of eligible vendors. The buyer can create a Release Requisition in COMMBUYS, submit the requisition for approval in COMMBUYS, and then send the vendor a Release Purchase Order.
  
  See the How to Make a Statewide Contract Purchase in COMMBUYS job aid for more details.
  
  This method should be used for Categories 1 and 3. Check the zone listing in Appendix to determine the city or town where you will have the gasoline delivered. Contact the vendor responsible for that zone to discuss locations, account requirements, and arrange for delivery. The contract covers nine zones across the state. For Categories 1 and 3, each zone has one awarded vendor. These vendors are responsible for servicing the eligible users within that zone. In the event of an issue, buyers can use another vendor awarded in the same categories (Categories 1 and 3). If this is the case, to ensure smooth operations, please continue to place orders in the usual mode by contacting the appropriate vendor.
  

• Document Items in COMMBUYS That Have Already Been Purchased: This contract enables buyers to retroactively record a previously made contract purchase within the COMMBUYS system. This is done through a Request for Payment Authorization (RPA) Release Requisition, which also allows MMARS users to easily keep track of spending.
  
  For a description on how to complete this purchase in COMMBUYS, see the How To Record a Contract Purchase Previously Made (RPA Release) job aid.

COMMBUYS is the Commonwealth of Massachusetts' e-procurement platform, serving as a central marketplace for state agencies and other Eligible Entities to procure goods and services, connecting government buyers and businesses. It aims to streamline the purchasing process, ensuring transparency and efficiency in the procurement process.

For Executive Agencies, COMMBUYS is required. Per 801 CMR 21.00, Executive Agencies must use established Statewide Contracts (SWCs) for the purchase of products and services. To set up a COMMBUYS buyer account or to update an existing agency account, the buyers must contact the COMMBUYS Help Desk at: 888-627-8283 or OSDhelpdesk@mass.gov.

While COMMBUYS use is not mandated for Non-Executive Agencies and other Eligible Entities, it is highly recommended to streamline the procurement process and assist buyers in making informed purchasing choices. Eligible entities should follow their internal guidelines for COMMBUYS use.

Buyers can view contract documents on COMMBUYS without requiring a COMMBUYS account or logging in.  
To find contract documents in COMMBUYS, follow these steps:

1. On the COMMBUYS home page, enter ENE53 in the search tool and select Blankets from the drop-down list.
2. Select the Search icon. The related Master Blanket Purchase Orders (MBPOs) information opens in a table format. 
3. To view the associated contract documents, under the Blanket # column, select the applicable Purchase Order (PO) link. MBPO opens for the selected PO and the attachments can be found in the Agency Attachments or Vendor Attachments section. 

If applicable, to find vendor-specific documents, view the links to the individual vendor MBPOs on the Vendor Information page, and follow these steps:

1. On the Vendor Information page, select the applicable Purchase Order (PO) link. The Master Blanket Purchase Order (MBPO) opens for the selected PO.
2. If applicable, on the MBPO, scroll down to the Vendor Attachments section to find the vendor-specific documents.
3. To view, select the desired document link.

Please refer to the following guidelines:

• Executive Departments must use diverse and small businesses to the extent possible based on contract terms, Supplier Diversity Office (SDO), and departmental policies, laws, and regulations.
• The Small Business Purchasing Program (SBPP) applies to small procurements ($250,000 or below annually), while the Supplier Diversity Program (SDP) applies to large procurements (over $250,000 annually). Executive Departments must consider these requirements when soliciting quotes or issuing Statements of Work (SOWs).
• Operational Services Division (OSD) provides a list of SDO businesses through the Statewide Contract Index. Refer to the Programs (SDP and SBPP) tab on the index (scroll to view the tab).

• In cases where all other factors are equal, and particularly when adhering to a best value approach, the department will favor the vendor with stronger SDP commitment.
• For more information, refer to Best Value Evaluation of SDP Plan Forms: A Guide for Strategic Sourcing Teams.
• Vendor SDP commitment percentages may be found on the Vendor List table.

• If available, departments must notify at least two certified small businesses capable of providing the product or service. Bids received from SBPP-participating small businesses must be evaluated, and if one meets the department’s best value criteria, the contract must be awarded to that vendor.
• For more information, refer to Best Value Evaluation of Responses to Small Procurements: A Guide for Strategic Sourcing Teams.
• Vendor SBPP Certification status can be found on the Vendor List table.

For delivery, please follow these guidelines:

• To ensure optimal service, ULSD and Biodiesel deliveries must be scheduled on days and during hours that are convenient for buyers. 
• Lead time for normal delivery will be 24 hours; 48 hours for holidays and weekends. 
• Deliveries of less than 500 gallons will not be subject to any additional charges or service fees. 
• For all delivery requirements, see the RFR under the Agency Attachments in the Master Blanket Purchase Order PO-25-1080-OSD03-OSD03-33382.
  

Vendors on this contract may be required to provide products or services in cases of statewide emergencies. The 801 CMR 21.05(3) defines emergency for procurement purposes. Visit the Emergency Response Supplies, Services and Equipment Contact Information for Statewide Contracts list for emergency services related to this contract.

Vendors' performance is measured by several factors, including the following:

• Buyers provide actionable feedback on vendors for this contract to optimize performance through the Procurated platform. On the Procurated website, click "Search for a Massachusetts Vendor to Review", then search for the vendor by name and select them from the list. Once you enter your professional email address, you will be forwarded to the review screen.
• Buyers are encouraged to reach out to the Category Manager(s) (Michael Barry or Kelly Minichello) if vendors are not meeting their contractual obligations and buyers may be surveyed for vendor performance feedback.
• Vendors will be evaluated on their current performance and may be asked to work with the Commonwealth toward improvement.
• Vendors must meet all contractual requirements throughout the life of the contract, including requirements for timely and accurate report submission, to remain in good standing under the contract.
  

For general procurement guidelines and best practices, follow these recommendations:

• Buyers should inform vendors to reference Statewide Contract ENE53 on all quotes and invoices.
• No prepayment should be made for products not yet delivered or services not yet rendered.
• No sales tax should be applied to invoices.
• No fees or surcharges (including travel, fuel, delivery) should be applied to invoices.
• Special order fees must be agreed upon by both parties upfront.
• Payments for products or services provided must be paid within 45 days per Massachusetts Bill Payment Policy, or sooner if applying Prompt Payment Discount.
• Buyers are not required to sign additional agreements with vendors that conflict with the Request for Response (RFR) Terms and Conditions. Contact the Category Manager(s) (Michael Barry or Kelly Minichello) for guidance. 
• Vendors must notify buyers of product substitutions.

This contract offers biofuel alternatives to conventional petroleum-based fuels such as gasoline, diesel, and heating oil. These biofuels are derived from renewable organic sources—including corn, soy, switchgrass, agricultural residue, wood, and waste vegetable oil. Biodiesel specifically refers to biofuels used in motor vehicles. Under this contract, biodiesel is available in multiple blends (B5, B10, B15, B20), listed under:

• Category 2: Differential Pricing for Biodiesel
• Category 4: Fixed Pricing for Biodiesel

Biodiesel blends are typically offered during spring and summer months and consist of 20% biodiesel and 80% ULSD (when available).

Environmental and Operational Benefits: Transitioning from fossil fuels to biofuels supports:

• Reduced greenhouse gas (GHG) and pollutant emissions
• Conservation of finite resources
• Decreased reliance on unstable foreign energy sources
  

Biodiesel benefits include:

• Renewable energy derived from agriculture-based oils or fats
• Cleaner combustion compared to petroleum diesel, lowering CO₂ and particulates (while possibly increasing NOx depending on engine conditions)
• Non-toxic and biodegradable properties, making spills less harmful and easier to manage

Compliance with Executive Order 594 (2021):  State agencies must comply with EO Section 4D and 5D guidelines:

• Fleet Fuel: All diesel purchased for state-operated vehicles must contain at least 5% biodiesel (B5)
• Bulk Storage: Entities with bulk diesel storage must use minimum B5 blends

Qualifying as Eligible Biodiesel:

1. Must demonstrate at least 50% reduction in lifecycle GHG emissions vs. conventional diesel
2. Fuel suppliers must be EPA-registered under the Renewable Fuel Standard and confirm biodiesel is derived from organic waste feedstocks
3. B100 must meet ASTM D6751 standard
4. Blended products must meet:
   • ASTM D975 for B5
   • ASTM D7467 for B6–B20

Quality Assurance: Vendors may be required to document rigorous quality control for fuel handling—including storage, blending, sampling, testing, and distribution procedures.

Learn More

Explore the Environmentally Preferable Products (EPP) Procurement Program and discover detailed guidance in the EPP Products and Services Guide.

When placing orders with a vendor, MOSAIC users must reference the contract ID number ENE53* in the Agreement ID field in MOSAIC for encumbrances related to purchases from Statewide Contracts. Please address all inquiries regarding MOSAIC technical support and job aids by emailing the Comptroller Help Desk or by calling 617-973-2468. 

*The asterisk is required when referencing the contract in the Massachusetts Management Accounting Reporting System (MOSAIC).

Truck Safety Standards

The RMV enacted new regulations (540 CMR 4.10 to 4.13) that apply to certain registered motor vehicles, trailers, semi-trailers, and semi-trailer units classified as Class 3 or above by the Federal Highway Administration, with a gross vehicle weight (GVW) rating of 10,001 pounds or more (“Heavy Vehicles”). Heavy Vehicles that are (1) leased or purchased by the Commonwealth on or after January 1, 2023, or (2) operated under contracts with the Commonwealth executed on or after January 1, 2025, that require the use of Heavy Vehicles in writing or by necessary implication, must be equipped with the following truck safety devices:

• Lateral protective devices (LPD), commonly called “Side Guards”
• Convex mirrors
• Crossover mirrors
• Back-up cameras

For snow and ice management and removal services and towing services, these regulations apply to Heavy Vehicles operated under contracts with the Commonwealth that were executed on or after July 1, 2025. Heavy Vehicles affected by the RMV regulations must be certified as compliant with these requirements beginning December 31, 2025 using the RMV portal. Please refer to MassDOT’s Truck Safety Devices for information about updates on truck safety devices, the certification and waiver process, and guidance for vendors. Further guidance will soon be available on the Operational Services Division (OSD) website.