diff --git a/american-chemical-society.csl b/american-chemical-society.csl
index b7d421858bd..c3b618341fb 100644
--- a/american-chemical-society.csl
+++ b/american-chemical-society.csl
@@ -18,10 +18,13 @@
     <contributor>
       <name>Sebastian Karcher</name>
     </contributor>
+    <contributor>
+      <name>Patrick O'Brien</name>
+    </contributor>
     <category citation-format="numeric"/>
     <category field="chemistry"/>
     <summary>The American Chemical Society style</summary>
-    <updated>2021-05-22T12:00:00+00:00</updated>
+    <updated>2022-09-19T18:32:56+00:00</updated>
     <rights license="http://creativecommons.org/licenses/by-sa/3.0/">This work is licensed under a Creative Commons Attribution-ShareAlike 3.0 License</rights>
   </info>
   <locale xml:lang="en">
@@ -138,6 +141,30 @@
       </else>
     </choose>
   </macro>
+  <macro name="access">
+    <choose>
+      <if variable="DOI" match="any">
+        <text variable="DOI" prefix="https://doi.org/"/>
+      </if>
+      <else-if type="article-journal book chapter entry-encyclopedia entry-dictionary paper-conference" match="none">
+        <choose>
+          <if variable="URL">
+            <group delimiter=" ">
+              <text variable="URL"/>
+              <group delimiter=" " prefix="(" suffix=")">
+                <text term="accessed"/>
+                <date variable="accessed">
+                  <date-part name="year"/>
+                  <date-part name="month" prefix="-" form="numeric-leading-zeros"/>
+                  <date-part name="day" prefix="-" form="numeric-leading-zeros"/>
+                </date>
+              </group>
+            </group>
+          </if>
+        </choose>
+      </else-if>
+    </choose>
+  </macro>
   <citation collapse="citation-number">
     <sort>
       <key variable="citation-number"/>
@@ -249,18 +276,10 @@
             </group>
           </group>
         </else-if>
-        <else-if type="webpage">
+        <else-if type="webpage post post-weblog" match="any">
           <group delimiter=". ">
             <text variable="title" font-style="italic"/>
             <text variable="container-title"/>
-            <group delimiter=" ">
-              <text variable="URL"/>
-              <date variable="accessed" prefix="(accessed " suffix=")">
-                <date-part name="year"/>
-                <date-part name="month" prefix="-" form="numeric-leading-zeros"/>
-                <date-part name="day" prefix="-" form="numeric-leading-zeros"/>
-              </date>
-            </group>
           </group>
         </else-if>
         <else>
@@ -277,7 +296,7 @@
           </group>
         </else>
       </choose>
-      <text variable="DOI" prefix=". https://doi.org/"/>
+      <text macro="access" prefix=". "/>
     </layout>
   </bibliography>
 </style>