diff --git a/src/rp-schematron-base.sch b/src/rp-schematron-base.sch
index 6eed72ff5e..a4638891bc 100644
--- a/src/rp-schematron-base.sch
+++ b/src/rp-schematron-base.sch
@@ -579,6 +579,10 @@
         <report test="text()[matches(.,'\p{L}') and not(matches(lower-case(.),'^[\p{Z}\p{P}]+(doi|pmid|and|pp?)[:\.]?'))]" 
         role="warning" 
         id="preprint-ref-text-content">This preprint reference (<value-of select="if (ancestor::ref/@id) then concat('id ',ancestor::ref/@id) else 'no id'"/>) has untagged textual content - <value-of select="string-join(text()[matches(.,'\p{L}') and not(matches(lower-case(.),'^[\p{Z}\p{P}]+(doi|pmid|and|pp?)[:\.]?'))],'; ')"/>. Is it tagged correctly?</report>
+       
+       <report test="volume" 
+        role="error" 
+        id="preprint-ref-volume">This preprint reference (<value-of select="if (ancestor::ref/@id) then concat('id ',ancestor::ref/@id) else 'no id'"/>) has a volume - <value-of select="volume"/>. That information is either tagged incorrectly, or the publication-type is wrong.</report>
      </rule>
       
       <rule context="mixed-citation[@publication-type='preprint']/source" id="preprint-source-checks">
diff --git a/src/rp-schematron.sch b/src/rp-schematron.sch
index 47e9b4cb2a..515056f51b 100644
--- a/src/rp-schematron.sch
+++ b/src/rp-schematron.sch
@@ -363,6 +363,8 @@
         <assert test="article-title" role="error" id="preprint-ref-article-title">[preprint-ref-article-title] This preprint reference (<value-of select="if (ancestor::ref/@id) then concat('id ',ancestor::ref/@id) else 'no id'"/>) has no article-title element.</assert>
 
         <report test="text()[matches(.,'\p{L}') and not(matches(lower-case(.),'^[\p{Z}\p{P}]+(doi|pmid|and|pp?)[:\.]?'))]" role="warning" id="preprint-ref-text-content">[preprint-ref-text-content] This preprint reference (<value-of select="if (ancestor::ref/@id) then concat('id ',ancestor::ref/@id) else 'no id'"/>) has untagged textual content - <value-of select="string-join(text()[matches(.,'\p{L}') and not(matches(lower-case(.),'^[\p{Z}\p{P}]+(doi|pmid|and|pp?)[:\.]?'))],'; ')"/>. Is it tagged correctly?</report>
+       
+       <report test="volume" role="error" id="preprint-ref-volume">[preprint-ref-volume] This preprint reference (<value-of select="if (ancestor::ref/@id) then concat('id ',ancestor::ref/@id) else 'no id'"/>) has a volume - <value-of select="volume"/>. That information is either tagged incorrectly, or the publication-type is wrong.</report>
      </rule></pattern><pattern id="preprint-source-checks-pattern"><rule context="mixed-citation[@publication-type='preprint']/source" id="preprint-source-checks">
         <report test="matches(lower-case(.),'^(\.\s*)?in[^a-z]')" role="warning" id="preprint-source">[preprint-source] Preprint reference (<value-of select="if (ancestor::ref/@id) then concat('id ',ancestor::ref/@id) else 'no id'"/>) has a source that starts with 'In ', '<value-of select="."/>'. Should that text be moved out of the source? And is it a different type of reference?</report>
         
diff --git a/src/rp-schematron.xsl b/src/rp-schematron.xsl
index 5cc3b92d8b..7fbae082a7 100644
--- a/src/rp-schematron.xsl
+++ b/src/rp-schematron.xsl
@@ -2885,6 +2885,21 @@
                <xsl:text/>. Is it tagged correctly?</svrl:text>
          </svrl:successful-report>
       </xsl:if>
+      <!--REPORT error-->
+      <xsl:if test="volume">
+         <svrl:successful-report xmlns:svrl="http://purl.oclc.org/dsdl/svrl" test="volume">
+            <xsl:attribute name="id">preprint-ref-volume</xsl:attribute>
+            <xsl:attribute name="role">error</xsl:attribute>
+            <xsl:attribute name="location">
+               <xsl:apply-templates select="." mode="schematron-select-full-path"/>
+            </xsl:attribute>
+            <svrl:text>[preprint-ref-volume] This preprint reference (<xsl:text/>
+               <xsl:value-of select="if (ancestor::ref/@id) then concat('id ',ancestor::ref/@id) else 'no id'"/>
+               <xsl:text/>) has a volume - <xsl:text/>
+               <xsl:value-of select="volume"/>
+               <xsl:text/>. That information is either tagged incorrectly, or the publication-type is wrong.</svrl:text>
+         </svrl:successful-report>
+      </xsl:if>
       <xsl:apply-templates select="*" mode="M35"/>
    </xsl:template>
    <xsl:template match="text()" priority="-1" mode="M35"/>
diff --git a/test/tests/rp/preprint-ref-checks/preprint-ref-volume/fail.xml b/test/tests/rp/preprint-ref-checks/preprint-ref-volume/fail.xml
new file mode 100644
index 0000000000..874a4a3658
--- /dev/null
+++ b/test/tests/rp/preprint-ref-checks/preprint-ref-volume/fail.xml
@@ -0,0 +1,11 @@
+<?oxygen SCHSchema="preprint-ref-volume.sch"?>
+<!--Context: mixed-citation[@publication-type='preprint']
+Test: report    volume
+Message: This preprint reference () has a volume - . That information is either tagged incorrectly, or the publication-type is wrong. -->
+<root xmlns:ali="http://www.niso.org/schemas/ali/1.0/" xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">
+    <article>
+        <mixed-citation publication-type="preprint">
+            <volume/>
+        </mixed-citation>
+    </article>
+</root>
\ No newline at end of file
diff --git a/test/tests/rp/preprint-ref-checks/preprint-ref-volume/pass.xml b/test/tests/rp/preprint-ref-checks/preprint-ref-volume/pass.xml
new file mode 100644
index 0000000000..0f1281e28c
--- /dev/null
+++ b/test/tests/rp/preprint-ref-checks/preprint-ref-volume/pass.xml
@@ -0,0 +1,9 @@
+<?oxygen SCHSchema="preprint-ref-volume.sch"?>
+<!--Context: mixed-citation[@publication-type='preprint']
+Test: report    volume
+Message: This preprint reference () has a volume - . That information is either tagged incorrectly, or the publication-type is wrong. -->
+<root xmlns:ali="http://www.niso.org/schemas/ali/1.0/" xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">
+    <article>
+        <mixed-citation publication-type="preprint"/>
+    </article>
+</root>
\ No newline at end of file
diff --git a/test/tests/rp/preprint-ref-checks/preprint-ref-volume/preprint-ref-volume.sch b/test/tests/rp/preprint-ref-checks/preprint-ref-volume/preprint-ref-volume.sch
new file mode 100644
index 0000000000..02dcbcf064
--- /dev/null
+++ b/test/tests/rp/preprint-ref-checks/preprint-ref-volume/preprint-ref-volume.sch
@@ -0,0 +1,157 @@
+<schema xmlns="http://purl.oclc.org/dsdl/schematron" xmlns:meca="http://manuscriptexchange.org" xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:ali="http://www.niso.org/schemas/ali/1.0/" xmlns:file="java.io.File" xmlns:java="http://www.java.com/" xmlns:xsl="http://www.w3.org/1999/XSL/Transform" xmlns:xlink="http://www.w3.org/1999/xlink" queryBinding="xslt2">
+  <title>eLife reviewed preprint schematron</title>
+  <ns uri="http://www.niso.org/schemas/ali/1.0/" prefix="ali"/>
+  <ns uri="http://www.w3.org/XML/1998/namespace" prefix="xml"/>
+  <ns uri="http://www.w3.org/1999/xlink" prefix="xlink"/>
+  <ns uri="http://www.w3.org/2001/XInclude" prefix="xi"/>
+  <ns uri="http://www.w3.org/1998/Math/MathML" prefix="mml"/>
+  <ns uri="http://saxon.sf.net/" prefix="saxon"/>
+  <ns uri="http://purl.org/dc/terms/" prefix="dc"/>
+  <ns uri="http://www.w3.org/2001/XMLSchema" prefix="xs"/>
+  <ns uri="https://elifesciences.org/namespace" prefix="e"/>
+  <ns uri="java.io.File" prefix="file"/>
+  <ns uri="http://www.java.com/" prefix="java"/>
+  <ns uri="http://manuscriptexchange.org" prefix="meca"/>
+  <xsl:function name="e:isbn-sum" as="xs:integer">
+    <xsl:param name="s" as="xs:string"/>
+    <xsl:choose>
+      <xsl:when test="string-length($s) = 10">
+        <xsl:variable name="d1" select="number(substring($s,1,1)) * 10"/>
+        <xsl:variable name="d2" select="number(substring($s,2,1)) * 9"/>
+        <xsl:variable name="d3" select="number(substring($s,3,1)) * 8"/>
+        <xsl:variable name="d4" select="number(substring($s,4,1)) * 7"/>
+        <xsl:variable name="d5" select="number(substring($s,5,1)) * 6"/>
+        <xsl:variable name="d6" select="number(substring($s,6,1)) * 5"/>
+        <xsl:variable name="d7" select="number(substring($s,7,1)) * 4"/>
+        <xsl:variable name="d8" select="number(substring($s,8,1)) * 3"/>
+        <xsl:variable name="d9" select="number(substring($s,9,1)) * 2"/>
+        <xsl:variable name="d10" select="number(substring($s,10,1)) * 1"/>
+        <xsl:value-of select="number($d1 + $d2 + $d3 + $d4 + $d5 + $d6 + $d7 + $d8 + $d9 + $d10) mod 11"/>
+      </xsl:when>
+      <xsl:when test="string-length($s) = 13">
+        <xsl:variable name="d1" select="number(substring($s,1,1))"/>
+        <xsl:variable name="d2" select="number(substring($s,2,1)) * 3"/>
+        <xsl:variable name="d3" select="number(substring($s,3,1))"/>
+        <xsl:variable name="d4" select="number(substring($s,4,1)) * 3"/>
+        <xsl:variable name="d5" select="number(substring($s,5,1))"/>
+        <xsl:variable name="d6" select="number(substring($s,6,1)) * 3"/>
+        <xsl:variable name="d7" select="number(substring($s,7,1))"/>
+        <xsl:variable name="d8" select="number(substring($s,8,1)) * 3"/>
+        <xsl:variable name="d9" select="number(substring($s,9,1))"/>
+        <xsl:variable name="d10" select="number(substring($s,10,1)) * 3"/>
+        <xsl:variable name="d11" select="number(substring($s,11,1))"/>
+        <xsl:variable name="d12" select="number(substring($s,12,1)) * 3"/>
+        <xsl:variable name="d13" select="number(substring($s,13,1))"/>
+        <xsl:value-of select="number($d1 + $d2 + $d3 + $d4 + $d5 + $d6 + $d7 + $d8 + $d9 + $d10 + $d11 + $d12 + $d13) mod 10"/>
+      </xsl:when>
+      <xsl:otherwise>
+        <xsl:value-of select="number('1')"/>
+      </xsl:otherwise>
+    </xsl:choose>
+  </xsl:function>
+  <xsl:function name="e:is-valid-issn" as="xs:boolean">
+      <xsl:param name="s" as="xs:string"/>
+      <xsl:choose>
+        <xsl:when test="not(matches($s,'^\d{4}\-\d{3}[\dX]$'))">
+          <xsl:value-of select="false()"/>
+        </xsl:when>
+        <xsl:otherwise>
+            <xsl:variable name="d1" select="number(substring($s,1,1)) * 8"/>
+            <xsl:variable name="d2" select="number(substring($s,2,1)) * 7"/>
+            <xsl:variable name="d3" select="number(substring($s,3,1)) * 6"/>
+            <xsl:variable name="d4" select="number(substring($s,4,1)) * 5"/>
+            <xsl:variable name="d5" select="number(substring($s,6,1)) * 4"/>
+            <xsl:variable name="d6" select="number(substring($s,7,1)) * 3"/>
+            <xsl:variable name="d7" select="number(substring($s,8,1)) * 2"/>
+            <xsl:variable name="remainder" select="number($d1 + $d2 + $d3 + $d4 + $d5 + $d6 + $d7) mod 11"/>
+            <xsl:variable name="calc" select="if ($remainder=0) then 0 else (11 - $remainder)"/>
+            <xsl:variable name="check" select="if (substring($s,9,1)='X') then 10 else number(substring($s,9,1))"/>
+            <xsl:value-of select="$calc = $check"/>
+        </xsl:otherwise>
+      </xsl:choose>
+    </xsl:function>
+  <xsl:function name="e:get-name" as="xs:string">
+    <xsl:param name="name"/>
+    <xsl:choose>
+      <xsl:when test="$name/given-names[1] and $name/surname[1] and $name/suffix[1]">
+        <xsl:value-of select="concat($name/given-names[1],' ',$name/surname[1],' ',$name/suffix[1])"/>
+      </xsl:when>
+      <xsl:when test="not($name/given-names[1]) and $name/surname[1] and $name/suffix[1]">
+        <xsl:value-of select="concat($name/surname[1],' ',$name/suffix[1])"/>
+      </xsl:when>
+      <xsl:when test="$name/given-names[1] and $name/surname[1] and not($name/suffix[1])">
+        <xsl:value-of select="concat($name/given-names[1],' ',$name/surname[1])"/>
+      </xsl:when>
+      <xsl:when test="not($name/given-names[1]) and $name/surname[1] and not($name/suffix[1])">
+        <xsl:value-of select="$name/surname[1]"/>
+      </xsl:when>
+      <xsl:otherwise>
+        <xsl:value-of select="'No elements present'"/>
+      </xsl:otherwise>
+    </xsl:choose>
+  </xsl:function>
+  <xsl:function name="e:get-copyright-holder">
+    <xsl:param name="contrib-group"/>
+    <xsl:variable name="author-count" select="count($contrib-group/contrib[@contrib-type='author'])"/>
+    <xsl:choose>
+      <xsl:when test="$author-count lt 1"/>
+      <xsl:when test="$author-count = 1">
+        <xsl:choose>
+          <xsl:when test="$contrib-group/contrib[@contrib-type='author']/collab">
+            <xsl:value-of select="$contrib-group/contrib[@contrib-type='author']/collab[1]/text()[1]"/>
+          </xsl:when>
+          <xsl:otherwise>
+            <xsl:value-of select="$contrib-group/contrib[@contrib-type='author']/name[1]/surname[1]"/>
+          </xsl:otherwise>
+        </xsl:choose>
+      </xsl:when>
+      <xsl:when test="$author-count = 2">
+        <xsl:choose>
+          <xsl:when test="$contrib-group/contrib[@contrib-type='author']/collab">
+            <xsl:choose>
+              <xsl:when test="$contrib-group/contrib[@contrib-type='author'][1]/collab and $contrib-group/contrib[@contrib-type='author'][2]/collab">
+                <xsl:value-of select="concat($contrib-group/contrib[@contrib-type='author']/collab[1]/text()[1],' &amp; ',$contrib-group/contrib[@contrib-type='author']/collab[2]/text()[1])"/>
+              </xsl:when>
+              <xsl:when test="$contrib-group/contrib[@contrib-type='author'][1]/collab">
+                <xsl:value-of select="concat($contrib-group/contrib[@contrib-type='author'][1]/collab[1]/text()[1],' &amp; ',$contrib-group/contrib[@contrib-type='author'][2]/name[1]/surname[1])"/>
+              </xsl:when>
+              <xsl:otherwise>
+                <xsl:value-of select="concat($contrib-group/contrib[@contrib-type='author'][1]/name[1]/surname[1],' &amp; ',$contrib-group/contrib[@contrib-type='author'][2]/collab[1]/text()[1])"/>
+              </xsl:otherwise>
+            </xsl:choose>
+          </xsl:when>
+          <xsl:otherwise>
+            <xsl:value-of select="concat($contrib-group/contrib[@contrib-type='author'][1]/name[1]/surname[1],' &amp; ',$contrib-group/contrib[@contrib-type='author'][2]/name[1]/surname[1])"/>
+          </xsl:otherwise>
+        </xsl:choose>
+      </xsl:when>
+      
+      <xsl:otherwise>
+        <xsl:variable name="is-equal-contrib" select="if ($contrib-group/contrib[@contrib-type='author'][1]/@equal-contrib='yes') then true() else false()"/>
+        
+        <xsl:value-of select="concat(e:get-surname($contrib-group/contrib[@contrib-type='author'][1]),' et al')"/>
+      </xsl:otherwise>
+    </xsl:choose>
+  </xsl:function>
+  <xsl:function name="e:get-surname" as="text()">
+    <xsl:param name="contrib"/>
+    <xsl:choose>
+      <xsl:when test="$contrib/collab">
+        <xsl:value-of select="$contrib/collab[1]/text()[1]"/>
+      </xsl:when>
+      <xsl:otherwise>
+        <xsl:value-of select="$contrib//name[1]/surname[1]"/>
+      </xsl:otherwise>
+    </xsl:choose>
+  </xsl:function>
+  <pattern id="preprint-ref-checks-pattern">
+    <rule context="mixed-citation[@publication-type='preprint']" id="preprint-ref-checks">
+      <report test="volume" role="error" id="preprint-ref-volume">[preprint-ref-volume] This preprint reference (<value-of select="if (ancestor::ref/@id) then concat('id ',ancestor::ref/@id) else 'no id'"/>) has a volume - <value-of select="volume"/>. That information is either tagged incorrectly, or the publication-type is wrong.</report>
+    </rule>
+  </pattern>
+  <pattern id="root-pattern">
+    <rule context="root" id="root-rule">
+      <assert test="descendant::mixed-citation[@publication-type='preprint']" role="error" id="preprint-ref-checks-xspec-assert">mixed-citation[@publication-type='preprint'] must be present.</assert>
+    </rule>
+  </pattern>
+</schema>
\ No newline at end of file
diff --git a/test/xspec/rp-schematron.sch b/test/xspec/rp-schematron.sch
index aa903efe90..22b6e2463a 100644
--- a/test/xspec/rp-schematron.sch
+++ b/test/xspec/rp-schematron.sch
@@ -422,6 +422,8 @@
         <assert test="article-title" role="error" id="preprint-ref-article-title">This preprint reference (<value-of select="if (ancestor::ref/@id) then concat('id ',ancestor::ref/@id) else 'no id'"/>) has no article-title element.</assert>
 
         <report test="text()[matches(.,'\p{L}') and not(matches(lower-case(.),'^[\p{Z}\p{P}]+(doi|pmid|and|pp?)[:\.]?'))]" role="warning" id="preprint-ref-text-content">This preprint reference (<value-of select="if (ancestor::ref/@id) then concat('id ',ancestor::ref/@id) else 'no id'"/>) has untagged textual content - <value-of select="string-join(text()[matches(.,'\p{L}') and not(matches(lower-case(.),'^[\p{Z}\p{P}]+(doi|pmid|and|pp?)[:\.]?'))],'; ')"/>. Is it tagged correctly?</report>
+       
+       <report test="volume" role="error" id="preprint-ref-volume">This preprint reference (<value-of select="if (ancestor::ref/@id) then concat('id ',ancestor::ref/@id) else 'no id'"/>) has a volume - <value-of select="volume"/>. That information is either tagged incorrectly, or the publication-type is wrong.</report>
      </rule>
   </pattern>
   <pattern id="preprint-source-checks-pattern">
diff --git a/test/xspec/rp-schematron.xspec b/test/xspec/rp-schematron.xspec
index 3d2945c83a..57ba54d8c1 100644
--- a/test/xspec/rp-schematron.xspec
+++ b/test/xspec/rp-schematron.xspec
@@ -845,6 +845,16 @@
         <x:expect-report id="preprint-ref-text-content" role="warning"/>
         <x:expect-not-assert id="preprint-ref-checks-xspec-assert" role="error"/>
       </x:scenario>
+      <x:scenario label="preprint-ref-volume-pass">
+        <x:context href="../tests/rp/preprint-ref-checks/preprint-ref-volume/pass.xml"/>
+        <x:expect-not-report id="preprint-ref-volume" role="error"/>
+        <x:expect-not-assert id="preprint-ref-checks-xspec-assert" role="error"/>
+      </x:scenario>
+      <x:scenario label="preprint-ref-volume-fail">
+        <x:context href="../tests/rp/preprint-ref-checks/preprint-ref-volume/fail.xml"/>
+        <x:expect-report id="preprint-ref-volume" role="error"/>
+        <x:expect-not-assert id="preprint-ref-checks-xspec-assert" role="error"/>
+      </x:scenario>
     </x:scenario>
     <x:scenario label="preprint-source-checks">
       <x:scenario label="preprint-source-pass">