diff --git a/turbidity/main.go b/turbidity/main.go
index 5ea8847c..82472aaf 100644
--- a/turbidity/main.go
+++ b/turbidity/main.go
@@ -1,5 +1,30 @@
+//go:build !nocv
 // +build !nocv
 
+/*
+DESCRIPTION
+Turbidity is a program to measure water clarity using computer vison
+
+AUTHORS
+Russell Stanley <russell@ausocean.org>
+
+LICENSE
+  Copyright (C) 2020 the Australian Ocean Lab (AusOcean)
+
+  It is free software: you can redistribute it and/or modify them
+  under the terms of the GNU General Public License as published by the
+  Free Software Foundation, either version 3 of the License, or (at your
+  option) any later version.
+
+  It is distributed in the hope that it will be useful, but WITHOUT
+  ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+  FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
+  for more details.
+
+  You should have received a copy of the GNU General Public License
+  in gpl.txt.  If not, see http://www.gnu.org/licenses.
+*/
+
 package main
 
 import (
diff --git a/turbidity/results.go b/turbidity/results.go
index 7a2fd3fd..455e31e7 100644
--- a/turbidity/results.go
+++ b/turbidity/results.go
@@ -1,5 +1,30 @@
+//go:build !nocv
 // +build !nocv
 
+/*
+DESCRIPTION
+Results struct used to store results from the turbidity sensor
+
+AUTHORS
+Russell Stanley <russell@ausocean.org>
+
+LICENSE
+  Copyright (C) 2020 the Australian Ocean Lab (AusOcean)
+
+  It is free software: you can redistribute it and/or modify them
+  under the terms of the GNU General Public License as published by the
+  Free Software Foundation, either version 3 of the License, or (at your
+  option) any later version.
+
+  It is distributed in the hope that it will be useful, but WITHOUT
+  ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+  FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
+  for more details.
+
+  You should have received a copy of the GNU General Public License
+  in gpl.txt.  If not, see http://www.gnu.org/licenses.
+*/
+
 package main
 
 // struct to hold the results of the turbidity sensor.
diff --git a/turbidity/turbidity.go b/turbidity/turbidity.go
index 7deca9cc..fb5d29f5 100644
--- a/turbidity/turbidity.go
+++ b/turbidity/turbidity.go
@@ -1,4 +1,30 @@
-// +build !nocv
+//go:build !ignore
+// +build !ignore
+
+/*
+DESCRIPTION
+Holds the turbidity sensor struct. Can evaluate 4x4 chessboard markers
+in an image to measure the sharpness and contrast.
+
+AUTHORS
+Russell Stanley <russell@ausocean.org>
+
+LICENSE
+  Copyright (C) 2020 the Australian Ocean Lab (AusOcean)
+
+  It is free software: you can redistribute it and/or modify them
+  under the terms of the GNU General Public License as published by the
+  Free Software Foundation, either version 3 of the License, or (at your
+  option) any later version.
+
+  It is distributed in the hope that it will be useful, but WITHOUT
+  ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+  FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
+  for more details.
+
+  You should have received a copy of the GNU General Public License
+  in gpl.txt.  If not, see http://www.gnu.org/licenses.
+*/
 
 package main