<SEC-DOCUMENT>0001618774-17-000002.txt : 20170104
<SEC-HEADER>0001618774-17-000002.hdr.sgml : 20170104
<ACCEPTANCE-DATETIME>20170104181818
ACCESSION NUMBER:		0001618774-17-000002
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20170102
FILED AS OF DATE:		20170104
DATE AS OF CHANGE:		20170104

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			Advanced Emissions Solutions, Inc.
		CENTRAL INDEX KEY:			0001515156
		STANDARD INDUSTRIAL CLASSIFICATION:	MISCELLANEOUS CHEMICAL PRODUCTS [2890]
		IRS NUMBER:				275472457
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		9135 S RIDGELINE BOULEVARD, SUITE 200
		CITY:			HIGHLANDS RANCH
		STATE:			CO
		ZIP:			80129
		BUSINESS PHONE:		303-734-1727

	MAIL ADDRESS:	
		STREET 1:		9135 S RIDGELINE BOULEVARD, SUITE 200
		CITY:			HIGHLANDS RANCH
		STATE:			CO
		ZIP:			80129

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Sampson L Heath
		CENTRAL INDEX KEY:			0001618774

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-37822
		FILM NUMBER:		17507670

	MAIL ADDRESS:	
		STREET 1:		C/O ADVANCED EMISSIONS SOLUTIONS, INC.
		STREET 2:		9135 S RIDGELINE BLVD STE 200
		CITY:			HIGHLANDS RANCH
		STATE:			CO
		ZIP:			80129
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>wf-form4_148357188103231.xml
<DESCRIPTION>FORM 4
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0306</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2017-01-02</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0001515156</issuerCik>
        <issuerName>Advanced Emissions Solutions, Inc.</issuerName>
        <issuerTradingSymbol>ADES</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001618774</rptOwnerCik>
            <rptOwnerName>Sampson L Heath</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>9135 S RIDGELINE BLVD STE 200</rptOwnerStreet1>
            <rptOwnerStreet2>C/O ADVANCED EMISSIONS SOLUTIONS, INC.</rptOwnerStreet2>
            <rptOwnerCity>HIGHLANDS RANCH</rptOwnerCity>
            <rptOwnerState>CO</rptOwnerState>
            <rptOwnerZipCode>80129</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>1</isDirector>
            <isOfficer>1</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle>President &amp; CEO</officerTitle>
            <otherText></otherText>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2017-01-02</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>F</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>555</value>
                    <footnoteId id="F1"/>
                </transactionShares>
                <transactionPricePerShare>
                    <value>9.24</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>D</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>147763</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2017-01-02</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>F</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>1812</value>
                    <footnoteId id="F2"/>
                </transactionShares>
                <transactionPricePerShare>
                    <value>9.24</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>D</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>145951</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2017-01-02</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>F</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>7938</value>
                    <footnoteId id="F3"/>
                </transactionShares>
                <transactionPricePerShare>
                    <value>9.24</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>D</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>138013</value>
                    <footnoteId id="F4"/>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <derivativeTable></derivativeTable>

    <footnotes>
        <footnote id="F1">Represents the shares withheld to satisfy the minimum statutory tax withholding obligations upon the vesting of 1,489 shares issued under the issuer's Amended and Restated 2007 Equity Incentive Plan, as amended (the &quot;2007 Plan&quot;), pursuant to the 2014 Long Term Incentive Plan.</footnote>
        <footnote id="F2">Represents the shares withheld to satisfy the minimum statutory tax withholding obligations upon the vesting of 4,861 shares issued under the 2007 Plan, pursuant to the 2015 Long Term Incentive Plan.</footnote>
        <footnote id="F3">Represents the shares withheld to satisfy the minimum statutory tax withholding obligations upon the vesting of 24,000 shares issued under the 2007 Plan, pursuant to the Long Term Incentive Plan.</footnote>
        <footnote id="F4">Of the amount shown, 102,862 shares are restricted stock (not fully vested and subject to forfeiture or certain repurchase rights, as applicable, under the 2007 Plan).</footnote>
    </footnotes>

    <remarks></remarks>

    <ownerSignature>
        <signatureName>/s/ L. Heath Sampson</signatureName>
        <signatureDate>2017-01-04</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
