diff --git a/docs/usage/index.rst b/docs/usage/index.rst
index d7dfbda..7928613 100644
--- a/docs/usage/index.rst
+++ b/docs/usage/index.rst
@@ -9,12 +9,18 @@ For documentation on the protocol and details on usage including input parameter
 Parameters
 =============
 
-Example of commonly used parameters:
+As of the most recent release, the SIA application supports the following SIAv2 query parameters:
 
 :POS: Central position of the region of interest (ICRS RA,Dec in degrees)
 :SIZE: Size of the search region in degrees
 :BAND: Energy bandpass to search
 :TIME: Time interval to search
+:MAXREC: Maximum number of records to return
+:INSTRUMENT: Name of instrument with which the data was acquired
+:EXPTIME: The range(s) of exposure times to be searched for data
+:CALIB: Calibration level of the data
+
+Support for ID, TARGET, FACILITY, and COLLECTION are coming soon.
 
 For a full list of parameters see the IVOA `SIAv2`_ specification