diff --git a/bsip-0040.md b/bsip-0040.md
index 294fd96..3564dc2 100644
--- a/bsip-0040.md
+++ b/bsip-0040.md
@@ -44,8 +44,12 @@ Assume account A and B and some unrelated key K. Furthermore A has a custom acti
 ```
 custom active authority = {
     operationid: 0 (transfer),
-    authority: K,
-    restricted: {
+    authority: {
+       threshold: 1
+       key_auth: [K, 1]
+       account_auth: []
+    },
+    assert: {
         to: B
     }
 }
@@ -54,6 +58,12 @@ That has the consquence now that a a transfer transaction sending funds away fro
 
 # Specifications
 
+* the account objects must be extended to store custom active authority
+* an operation must be extended or created to allow changing the custom active authority
+* additional signatures and operation-specific authorities (if present) must be evaluated against incoming transactions
+
+* additional committee parameters may need to be specified to limit the extend of usage of this feature
+
 # Discussion
 
 To be found in the [issue](https://github.com/bitshares/bitshares-core/issues/1061).