diff --git a/DataONEProdIntCA/certs/urn:node:mnUCSB1-1.pem b/DataONEProdIntCA/certs/urn:node:mnUCSB1-1.pem
new file mode 100644
index 0000000..57c9247
--- /dev/null
+++ b/DataONEProdIntCA/certs/urn:node:mnUCSB1-1.pem
@@ -0,0 +1,30 @@
+-----BEGIN CERTIFICATE-----
+MIIFGjCCAwKgAwIBAgIJAOpdbMilkQU4MA0GCSqGSIb3DQEBCwUAME4xEzARBgoJ
+kiaJk/IsZAEZFgNvcmcxFzAVBgoJkiaJk/IsZAEZFgdkYXRhb25lMR4wHAYDVQQD
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+6qO/aiW5yX3C0+159c+W1WqTz3vZ446Xfggw44rWd8t5SOKEzK9Y9sOVdPz07aRC
+WYt08nRdTalsApqs4BNkiwjW0q4IxjzfyFVK7P/ULmjhuR+P1hq+cbWcwLv3pNaS
+PrvYVSDVm7hK3YHf1llHm2s3/xjOzMNW8rLxNTgdvxS++Bez1OqlxzrHO4N6wd71
+zDht7SnhrNWyWmwEtlA=
+-----END CERTIFICATE-----
diff --git a/DataONEProdIntCA/index.txt b/DataONEProdIntCA/index.txt
index 7d76579..0318995 100644
--- a/DataONEProdIntCA/index.txt
+++ b/DataONEProdIntCA/index.txt
@@ -12,3 +12,4 @@ V	270701171120Z		EA5D6CC8A5910534	unknown	/DC=org/DC=dataone/CN=cn-ucsb-1.dataon
 V	270701171602Z		EA5D6CC8A5910535	unknown	/DC=org/DC=dataone/CN=cn-orc-1.dataone.org
 V	270829154305Z		EA5D6CC8A5910536	unknown	/DC=org/DC=dataone/CN=urn:node:TFRI
 V	271213151215Z		EA5D6CC8A5910537	unknown	/DC=org/DC=dataone/CN=urn:node:CIB
+V	280114195155Z		EA5D6CC8A5910538	unknown	/DC=org/DC=dataone/CN=urn:node:mnUCSB1
diff --git a/DataONEProdIntCA/index.txt.old b/DataONEProdIntCA/index.txt.old
index 0725157..7d76579 100644
--- a/DataONEProdIntCA/index.txt.old
+++ b/DataONEProdIntCA/index.txt.old
@@ -11,3 +11,4 @@ V	270605175600Z		EA5D6CC8A5910533	unknown	/DC=org/DC=dataone/CN=urn:node:NMEPSCO
 V	270701171120Z		EA5D6CC8A5910534	unknown	/DC=org/DC=dataone/CN=cn-ucsb-1.dataone.org
 V	270701171602Z		EA5D6CC8A5910535	unknown	/DC=org/DC=dataone/CN=cn-orc-1.dataone.org
 V	270829154305Z		EA5D6CC8A5910536	unknown	/DC=org/DC=dataone/CN=urn:node:TFRI
+V	271213151215Z		EA5D6CC8A5910537	unknown	/DC=org/DC=dataone/CN=urn:node:CIB
diff --git a/DataONEProdIntCA/newcerts/EA5D6CC8A5910538.pem b/DataONEProdIntCA/newcerts/EA5D6CC8A5910538.pem
new file mode 100644
index 0000000..57c9247
--- /dev/null
+++ b/DataONEProdIntCA/newcerts/EA5D6CC8A5910538.pem
@@ -0,0 +1,30 @@
+-----BEGIN CERTIFICATE-----
+MIIFGjCCAwKgAwIBAgIJAOpdbMilkQU4MA0GCSqGSIb3DQEBCwUAME4xEzARBgoJ
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+zDht7SnhrNWyWmwEtlA=
+-----END CERTIFICATE-----
diff --git a/DataONEProdIntCA/req/urn:node:mnUCSB1-1.csr b/DataONEProdIntCA/req/urn:node:mnUCSB1-1.csr
new file mode 100644
index 0000000..ba985b2
--- /dev/null
+++ b/DataONEProdIntCA/req/urn:node:mnUCSB1-1.csr
@@ -0,0 +1,16 @@
+-----BEGIN CERTIFICATE REQUEST-----
+MIICjjCCAXYCAQAwSTETMBEGCgmSJomT8ixkARkWA29yZzEXMBUGCgmSJomT8ixk
+ARkWB2RhdGFvbmUxGTAXBgNVBAMMEHVybjpub2RlOm1uVUNTQjEwggEiMA0GCSqG
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+JjMXEKW8sNJI8DH1W9sqgkMz3Jq1Jn8E0ZrL8RQO2pR8Pw==
+-----END CERTIFICATE REQUEST-----
diff --git a/DataONEProdIntCA/serial b/DataONEProdIntCA/serial
index 4e2650d..a64c6eb 100644
--- a/DataONEProdIntCA/serial
+++ b/DataONEProdIntCA/serial
@@ -1 +1 @@
-EA5D6CC8A5910538
+EA5D6CC8A5910539
diff --git a/DataONEProdIntCA/serial.old b/DataONEProdIntCA/serial.old
index 73a8331..4e2650d 100644
--- a/DataONEProdIntCA/serial.old
+++ b/DataONEProdIntCA/serial.old
@@ -1 +1 @@
-EA5D6CC8A5910537
+EA5D6CC8A5910538