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        <filerInfo>
            <filer>
                <filerCredentials>
                    <cik>0001926747</cik>
                    <ccc>XXXXXXXX</ccc>
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            <liveTestFlag>LIVE</liveTestFlag>



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        <issuerInfo>
            <issuerCik>0000911177</issuerCik>
            <issuerName>CASELLA WASTE SYSTEMS, INC.</issuerName>
            <secFileNumber>000-23211</secFileNumber>
            <issuerAddress>
                <ns2:street1>25 Greens Hill Lane</ns2:street1>
                <ns2:city>Rutland</ns2:city>
                <ns2:stateOrCountry>VT</ns2:stateOrCountry>
                <ns2:zipCode>05701</ns2:zipCode>
            </issuerAddress>
            <issuerContactPhone>8027750325</issuerContactPhone>
            <nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>PAUL LIGON</nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>
            <relationshipsToIssuer>
                <relationshipToIssuer>Officer</relationshipToIssuer>
            </relationshipsToIssuer>
        </issuerInfo>
        <securitiesInformation>
            <securitiesClassTitle>Common</securitiesClassTitle>
            <brokerOrMarketmakerDetails>
                <name>Morgan Stanley Smith Barney LLC Executive Financial Services</name>
                <address>
                    <ns2:street1>1 New York Plaza</ns2:street1>
                    <ns2:street2>8th Floor</ns2:street2>
                    <ns2:city>New York</ns2:city>
                    <ns2:stateOrCountry>NY</ns2:stateOrCountry>
                    <ns2:zipCode>10004</ns2:zipCode>
                </address>
            </brokerOrMarketmakerDetails>
            <noOfUnitsSold>3000</noOfUnitsSold>
            <aggregateMarketValue>354120.00</aggregateMarketValue>
            <noOfUnitsOutstanding>62370275</noOfUnitsOutstanding>
            <approxSaleDate>04/16/2025</approxSaleDate>
            <securitiesExchangeName>NASDAQ</securitiesExchangeName>
        </securitiesInformation>
        <securitiesToBeSold>
            <securitiesClassTitle>Common</securitiesClassTitle>
            <acquiredDate>01/13/2023</acquiredDate>
            <natureOfAcquisitionTransaction>Restricted Stock Units</natureOfAcquisitionTransaction>
            <nameOfPersonfromWhomAcquired>Issuer</nameOfPersonfromWhomAcquired>
            <isGiftTransaction>N</isGiftTransaction>
            <amountOfSecuritiesAcquired>3000</amountOfSecuritiesAcquired>
            <paymentDate>01/13/2023</paymentDate>
            <natureOfPayment>N/A</natureOfPayment>
        </securitiesToBeSold>
        <nothingToReportFlagOnSecuritiesSoldInPast3Months>N</nothingToReportFlagOnSecuritiesSoldInPast3Months>
        <securitiesSoldInPast3Months>
            <sellerDetails>
                <name>PAUL LIGON</name>
                <address>
                    <ns2:street1>25 Greens Hill Lane</ns2:street1>
                    <ns2:city>Rutland</ns2:city>
                    <ns2:stateOrCountry>VT</ns2:stateOrCountry>
                    <ns2:zipCode>5701</ns2:zipCode>
                </address>
            </sellerDetails>
            <securitiesClassTitle>Common</securitiesClassTitle>
            <saleDate>03/13/2025</saleDate>
            <amountOfSecuritiesSold>57</amountOfSecuritiesSold>
            <grossProceeds>5931.42</grossProceeds>
        </securitiesSoldInPast3Months>
        <securitiesSoldInPast3Months>
            <sellerDetails>
                <name>PAUL LIGON</name>
                <address>
                    <ns2:street1>25 Greens Hill Lane</ns2:street1>
                    <ns2:city>Rutland</ns2:city>
                    <ns2:stateOrCountry>VT</ns2:stateOrCountry>
                    <ns2:zipCode>5701</ns2:zipCode>
                </address>
            </sellerDetails>
            <securitiesClassTitle>Common</securitiesClassTitle>
            <saleDate>03/12/2025</saleDate>
            <amountOfSecuritiesSold>125</amountOfSecuritiesSold>
            <grossProceeds>13310.84</grossProceeds>
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        <securitiesSoldInPast3Months>
            <sellerDetails>
                <name>PAUL LIGON</name>
                <address>
                    <ns2:street1>25 Greens Hill Lane</ns2:street1>
                    <ns2:city>Rutland</ns2:city>
                    <ns2:stateOrCountry>VT</ns2:stateOrCountry>
                    <ns2:zipCode>5701</ns2:zipCode>
                </address>
            </sellerDetails>
            <securitiesClassTitle>Common</securitiesClassTitle>
            <saleDate>03/03/2025</saleDate>
            <amountOfSecuritiesSold>487</amountOfSecuritiesSold>
            <grossProceeds>55191.71</grossProceeds>
        </securitiesSoldInPast3Months>
        <noticeSignature>
            <noticeDate>04/16/2025</noticeDate>
            <planAdoptionDates>
                <planAdoptionDate>12/16/2024</planAdoptionDate>
            </planAdoptionDates>
            <signature>/s/ Paul Ligon</signature>
        </noticeSignature>
    </formData>
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144
0001926747
XXXXXXXX
LIVE
0000911177
CASELLA WASTE SYSTEMS, INC.
000-23211
25 Greens Hill Lane
Rutland
VT
05701
8027750325
PAUL LIGON
Officer
Common
Morgan Stanley Smith Barney LLC Executive Financial Services
1 New York Plaza
8th Floor
New York
NY
10004
3000
354120.00
62370275
04/16/2025
NASDAQ
Common
01/13/2023
Restricted Stock Units
Issuer
N
3000
01/13/2023
N/A
N
PAUL LIGON
25 Greens Hill Lane
Rutland
VT
5701
Common
03/13/2025
57
5931.42
PAUL LIGON
25 Greens Hill Lane
Rutland
VT
5701
Common
03/12/2025
125
13310.84
PAUL LIGON
25 Greens Hill Lane
Rutland
VT
5701
Common
03/03/2025
487
55191.71
04/16/2025
12/16/2024
/s/ Paul Ligon