diff --git a/infra/ansible/roles/app/templates/app.env.j2 b/infra/ansible/roles/app/templates/app.env.j2
index dc95432..857df22 100644
--- a/infra/ansible/roles/app/templates/app.env.j2
+++ b/infra/ansible/roles/app/templates/app.env.j2
@@ -124,6 +124,12 @@ IRP_SC_EMAIL={{ vault_irp_sc_email | default('MCS@scdmv.net') }}
 ISA_SC_EMAIL={{ vault_isa_sc_email | default('') }}
 ISA_GA_EMAIL={{ vault_isa_ga_email | default('') }}
 ISA_TX_EMAIL={{ vault_isa_tx_email | default('') }}
+# SC PSC MyDMS / E-File portal credentials (non-attorney "Service" filer
+# registered under Performance West). Used by the SC intrastate Playwright
+# filer to log in and eFile authority applications. Secret lives only in the
+# server .env (never committed); blank default here.
+ISA_SC_DMS_USER={{ vault_isa_sc_dms_user | default('') }}
+ISA_SC_DMS_PASS={{ vault_isa_sc_dms_pass | default('') }}
 
 # ── Porkbun (.ca domain registration) ────────────────────────────────────────
 PORKBUN_API_KEY={{ vault_porkbun_api_key | default('') }}