The CTCOG has various items/services that may need to be purchased during the year. For items/services over $500 it is necessary for the CTCOG to retrieve three phone quotes. For items/services over $25,000 in the aggregate, it is necessary for the CTCOG to formally procure through a request for proposals. Consultant services do not require or prohibit the use of competitive bidding procedures.

If you are interested in being placed on the CTCOG vendor list, please complete the Vendor Application. In the event there are any current formal procurements, that information and relative documentation will be listed below as well.

Grant Opportunities

We are subscribed to the feeds from www.Grants.Gov. Use the links below to search for grants or subscribe to get email announcements and updates to funding opportunities.

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Vendor Opportunities

Please review our CTCOG Procurement Policy with required forms, certifications, and assurances.

Request for Proposals

2024-2025 Air Quality Services - Emissions Inventory

RFP Opening Information

All RFPs received by the submission deadline will be opened on a virtual meeting at 2:00pm CT on Monday, December 9, 2024. Once all RFPs have been opened the meeting will end, please see the RFP for additional information on when a response will be provided to all Proposers.

The virtual meeting will be conducted on the GoTo meeting platform. Access information is provided below.

Link: https://meet.goto.com/744795413

Call in Number: 571-317-3112

Access Code: 744-795-413

Email james.mcgill@ctcog.org if you have any questions.

2024-2025 Air Quality Services – Emissions Inventory RFP Q&A

1. We assume the funded amount for the emissions inventory will be the remaining funds from CTCOG 2024-2025 Air Quality Services – Ambient Monitoring RFP.  Is this correct?  If so, what is the total available amount based on remaining funds from the awarded air monitoring consultant contract

A: The funding for this RFP is not the remaining funds from the Ambient Monitoring RFP. A total amount available was intentionally not included in the proposal since one of the scoring criteria is financial. CTCOG is more interested in proposed approaches to the work then the cost. However, cost will remain a factor. If necessary, CTCOG will negotiate with the selected proposer to adjust the proposed scope of work to fit within our available budget.

2. Based on funding, is there an expectation that the scope of work will include running biogenic emissions models such as Biogenic Emission Inventory System (BEIS) or Model of Emissions of gases and Aerosols from Nature (MEGAN) or is CTCOG interested in a review of inputs to previously studies that have relied on the BEIS and MEGAN emissions models and make recommendations on updates, refinements, any alternative approaches for estimate biogenic emissions.

A: There is no expectation of running biogenic emissions models. The Rider 7 Program specifically prohibits modeling as an eligible expense under the program. The scope of work is primarily aimed at reviewing inputs and recommending improvements or exploring alternative approaches to estimate biogenic emissions. However, if running a model is required to accurately review inputs or recommend improvements that is allowable under the grant.

3. Is there an expectation that the evaluation of BEIS/MEGAN inputs require performing sensitivities in CMAQ/CAMx photochemical modeling? 

A: There is no expectation from CTCOG for this. CTCOG is relying on the expertise of proposers in this arena to determine what is and is not necessary.

4. Is there an expectation that running BEIS/MEGAN pre-processors will be required to evaluate key soil NOx emissions inputs such as vegetation distribution and meteorological conditions.

A: There is no expectation from CTCOG for this. CTCOG is relying on the expertise of proposers in this arena to determine what is and is not necessary.

5. Does CTCOG expect air quality consulting services to include evaluation of biogenics VOCs in addition to the emphasis on NOx sources?  If VOCs are included in the scope of work, are there specific speciated VOCs, or speciation mechanism, of interest to CTCOG?

A: CTCOG is interested in emphasizing NOx due to previous focus on VOCs and a perceived lack of exploration in this emissions area. However, an evaluation of biogenics VOCs is welcome in any proposal. There are no specific VOCs or mechanisms of interest to CTCOG.