diff --git a/config/openurl.json b/config/openurl.json
index 6b27466..cb105ed 100644
--- a/config/openurl.json
+++ b/config/openurl.json
@@ -38,6 +38,12 @@
     { "name": "CCL (US)", "code": "us-ccl"}
   ],
 
+  "serviceLevels": [
+    { "name": "Standard", "code": "standard" },
+    { "name": "Rush", "code": "rush" },
+    { "name": "Express", "code": "express" }
+  ],
+
   "services": {
     "US-EAST": {
       "okapiUrl": "https://east-okapi.folio-dev.indexdata.com",
diff --git a/doc/manual.md b/doc/manual.md
index a671c84..6db19cf 100644
--- a/doc/manual.md
+++ b/doc/manual.md
@@ -69,7 +69,8 @@ Configuration of the OpenURL listener is primarily by means of configuration fil
 * `checkLimit` -- boolean, when `true` an attempt will be made to see if the request does not put the patron identified by `req_id` over the request limit and to notify them of this instead of placing a request or displaying the form.
 * `docRoot` -- specifies the location of a directory, relative to the location of the configuration file, from which [static files can be served](#serving-static-files).
 * `digitalOnly` -- boolean indicating that pickup location should not be solicited and `deliveryMethod` should be passed to ReShare as `URL`
-* `copyrightTypes` -- an array of objects with properties `code` and `name` specifying the ISO18626 copyright type codes to offer as options for that field and the display names to associate with them
+* `copyrightTypes` -- an array of objects with properties `code` and `name` specifying the ISO18626 copyright type codes to offer as options for that field and the display names to associate with them, overriding those encoded in the system's Refdata
+* `serviceLevels` -- an array of objects with properties `code` and `name` specifying the ReShare service levels to offer as options for that field and the display names to associate with them, overriding those encoded in the system's Refdata
 
 #### For communication with the ReShare back-end:
 
diff --git a/src/OpenURLServer.js b/src/OpenURLServer.js
index fd66335..b6f92f0 100644
--- a/src/OpenURLServer.js
+++ b/src/OpenURLServer.js
@@ -156,7 +156,7 @@ async function makeFormData(ctx, query, service, valuesNotShownInForm, firstTry,
       name: x.charAt(0).toUpperCase() + x.slice(1),
       checked: x === query.svc_id || (!query.svc_id && i === 0) ? 'checked' : '',
     })),
-    serviceLevels: (serviceLevels || []).map(x => ({
+    serviceLevels: (ctx.cfg.getValues()?.serviceLevels || serviceLevels || []).map(x => ({
       ...x,
       selected: x.code === query['svc.level'] ? 'selected' : '',
     })),