diff --git a/app/controllers/timeclock.js b/app/controllers/timeclock.js
index a753218..f287b7b 100644
--- a/app/controllers/timeclock.js
+++ b/app/controllers/timeclock.js
@@ -6,6 +6,7 @@ var _ = require('lodash');
 var Promise = require('bluebird');
 var TimeClockSpan = mongoose.model('TimeClockSpan');
 var TimeClockException = mongoose.model('TimeClockException');
+var TimeSheet = mongoose.model('TimeSheet');
 var Workorder = mongoose.model('Workorder');
 var email = require('../util/email');
 var config = require('../../config/config')['prod'];
@@ -33,6 +34,35 @@ function MultipleSpansError(spans) {
 }
 MultipleSpansError.prototype = Object.create(Error.prototype);
 
+function hasTechApprovedPreviousWeek(user, day) {
+  var startOfWeek = day.clone().startOf('week').subtract(1, 'week').toDate();
+  var endOfWeek = day.clone().endOf('week').subtract(1, 'week').toDate();
+
+  return Promise
+    .props({
+      spans: TimeClockSpan.count({
+        start: {
+          '$gte': startOfWeek,
+          '$lte': endOfWeek
+        },
+        user: user
+      }),
+      timesheet: TimeSheet.findOne({
+        week: startOfWeek,
+        user: user
+      })
+    })
+    .then((props) => {
+      console.log('Spans last week: ', props.spans);
+      console.log('Previous timesheet', props.timesheet);
+
+      var approved = props.spans == 0 || (props.timesheet && props.timesheet.approved);
+      console.log('Status: ', approved);
+      
+      return approved;
+    });
+}
+
 function findUserSpans(user, day) {
   var startOfDay = day.clone().startOf('day').toDate();
   var endOfDay = day.clone().endOf('day').toDate();
@@ -523,6 +553,16 @@ function validateDate(req, field) {
   return Promise.resolve(date);
 }
 
+function sendApprovalRequiredResponse(res, date) {
+  date = moment().startOf('week').subtract(1, 'week');
+  res.json({
+    tasks: [{
+      type: 'approveTimesheet',
+      week: date.format('YYYY-MM-DD')
+    }]
+  });
+}
+
 module.exports = function () {
   return {
     index: function (req, res) {
@@ -531,12 +571,20 @@ module.exports = function () {
 
       var today = moment();
 
-      var spans = findUserSpans(req.user.id, today);
-      var workorders = findUserWorkorders(req.user, today);
+      hasTechApprovedPreviousWeek(req.user.id, today)
+        .then(approved => {
+          console.log('Approved? ', approved);
+          if (!approved) {
+            return sendApprovalRequiredResponse(res, today);
+          }
 
-      Promise.join(spans, workorders, handleStatusRequest)
-        .then(responseHandler(res))
-        .catch(errorHandler(res));
+          var spans = findUserSpans(req.user.id, today);
+          var workorders = findUserWorkorders(req.user, today);
+
+          Promise.join(spans, workorders, handleStatusRequest)
+            .then(responseHandler(res))
+            .catch(errorHandler(res));
+        });
     },
 
     clockIn: function (req, res) {
@@ -545,34 +593,50 @@ module.exports = function () {
 
       var today = moment();
 
-      var params = validateClockRequest(req);
-      var spans = findUserSpans(req.user.id, today);
-      var workorders = findUserWorkorders(req.user, today);
+      hasTechApprovedPreviousWeek(req.user.id, today)
+        .then(approved => {
 
-      Promise.join(params, req.user, spans, workorders, today, handleClockInRequest)
-        .then(responseHandler(res))
-        .catch(errorHandler(res));
+          if (!approved) {
+            return sendApprovalRequiredResponse(res, today);
+          }
+
+          var params = validateClockRequest(req);
+          var spans = findUserSpans(req.user.id, today);
+          var workorders = findUserWorkorders(req.user, today);
+
+          Promise.join(params, req.user, spans, workorders, today, handleClockInRequest)
+            .then(responseHandler(res))
+            .catch(errorHandler(res));
+        });
     },
 
     clockOut: function (req, res) {
 
       //TODO: Check to make sure user has a valid timesheet.
 
-      Promise
-        .props({
-          id: req.body.id,
-          date: moment(),
-          notes: req.body.notes,
-          reason: req.body.reason,
-          type: req.body.type
-        })
-        .then((params) => {
-          var spans = findUserSpans(req.user.id, params.date);
-          var workorders = findUserWorkorders(req.user, params.date);
-          return Promise.join(params, req.user, spans, workorders, params.date, handleClockOutRequest);
-        })
-        .then(responseHandler(res))
-        .catch(errorHandler(res));
+      hasTechApprovedPreviousWeek(req.user.id, today)
+        .then(approved => {
+
+          if (!approved) {
+            return sendApprovalRequiredResponse(res, today);
+          }
+
+          Promise
+            .props({
+              id: req.body.id,
+              date: moment(),
+              notes: req.body.notes,
+              reason: req.body.reason,
+              type: req.body.type
+            })
+            .then((params) => {
+              var spans = findUserSpans(req.user.id, params.date);
+              var workorders = findUserWorkorders(req.user, params.date);
+              return Promise.join(params, req.user, spans, workorders, params.date, handleClockOutRequest);
+            })
+            .then(responseHandler(res))
+            .catch(errorHandler(res));
+        });
     },
 
     spansForUser: function (req, res) {
diff --git a/app/controllers/timesheet.js b/app/controllers/timesheet.js
index 350994c..e9d27a6 100644
--- a/app/controllers/timesheet.js
+++ b/app/controllers/timesheet.js
@@ -6,6 +6,7 @@ var _ = require('lodash');
 var Promise = require('bluebird');
 var TimeClockSpan = mongoose.model('TimeClockSpan');
 var Workorder = mongoose.model('Workorder');
+var TimeSheet = mongoose.model('TimeSheet');
 var User = mongoose.model('User');
 var db = require('./db');
 
@@ -140,21 +141,28 @@ function buildReport(spans) {
     .then(findWorkordersById)
     .then(indexById);
 
-  const usersById = spans
-    .then(extractIds('user'))
+  const userIds = spans
+    .then(extractIds('user'));
+
+  const usersById = userIds
     .then(findUsersById)
     .then(indexById);
 
-  return Promise.join(spans, workordersById, usersById, generateSummary);
+  const timesheetsByUser = userIds
+    .then(findTimesheetsByUser)
+    .then(indexByUser);
+
+  return Promise.join(spans, workordersById, usersById, timesheetsByUser, generateSummary);
 }
 
-function generateSummary(spans, workordersById, usersById) {
+function generateSummary(spans, workordersById, usersById, timesheetsByUser) {
   var results = {};
 
   function fetchOrCreateUserRecord(userId) {
     var record = results[userId];
     if (!record) {
       var user = usersById[userId];
+      var timesheet = timesheetsByUser[userId];
 
       record = results[userId] = {
         user: {
@@ -162,6 +170,7 @@ function generateSummary(spans, workordersById, usersById) {
           name: user.name
         },
         hasOpenSpans: false,
+        approved: !!(timesheet && timesheet.approved),
         workorders: {},
         spans: {},
         clockedTime: 0,
@@ -264,6 +273,10 @@ function indexById(data) {
   return _.indexBy(data, 'id')
 }
 
+function indexByUser(data) {
+  return _.indexBy(data, 'user')
+}
+
 function findWorkordersById(ids) {
   const query = {
     _id: {
@@ -287,6 +300,16 @@ function findUsersById(ids) {
   return User.find(query).exec();
 }
 
+function findTimesheetsByUser(ids) {
+  const query = {
+    user: {
+      $in: ids
+    }
+  };
+
+  return TimeSheet.find(query).exec();
+}
+
 function findAllSpansForWeek(week) {
   var startOfWeek = week.clone().startOf('week');
   var endOfWeek = week.clone().endOf('week');
@@ -320,6 +343,33 @@ function findUserSpansForWeek(id, week) {
   return TimeClockSpan.find(query).exec();
 }
 
+function approvalHandler(req, res) {
+  return (params) => {
+    params.week = params.week.toDate();
+
+    var query = {
+      user: params.id,
+      week: params.week
+    };
+
+    req.db.TimeSheet.findOne(query)
+      .then(timesheet => {
+
+        if (!timesheet) {
+          timesheet = new req.db.TimeSheet({
+            user: params.id,
+            week: params.week
+          });
+        }
+
+        timesheet.approved = true;
+        timesheet.approvedOn = new Date();
+
+        res.promise(timesheet.save());
+      });
+  };
+}
+
 module.exports = function () {
   return {
     daysWorked: function (req, res) {
@@ -365,6 +415,15 @@ module.exports = function () {
         .then(userSummaryHandler)
         .then(responseHandler(res))
         .catch(errorHandler(res));
+    },
+    approve: function(req, res) {
+      Promise
+        .props({
+          id: validateUserId(req),
+          week: validateWeek(req)
+        })
+        .then(approvalHandler(req, res))
+        .catch(errorHandler(res));
     }
   }
 };
diff --git a/app/model/timeSheet.js b/app/model/timeSheet.js
new file mode 100644
index 0000000..717e534
--- /dev/null
+++ b/app/model/timeSheet.js
@@ -0,0 +1,42 @@
+"use strict";
+
+var moment = require('moment');
+var mongoose = require('mongoose');
+var Schema = mongoose.Schema;
+var ObjectId = Schema.ObjectId;
+
+var schema = new Schema({
+  user: {
+    type: ObjectId,
+    ref: 'User',
+    required: true
+  },
+
+  week: {
+    type: Date,
+    required: true
+  },
+
+  approved: {
+    type: Boolean,
+    default: false,
+    required: true
+  },
+
+  approvedOn: {
+    type: Date,
+    required: function() {
+      return this.approved === true;
+    }
+  }
+});
+
+schema.pre('save', function (next) {
+  if (!this.approved) {
+    this.approvedOn = undefined;
+  }
+
+  next();
+});
+
+module.exports = mongoose.model('TimeSheet', schema);
diff --git a/app/routes/spans.js b/app/routes/spans.js
index 019000e..60047b8 100644
--- a/app/routes/spans.js
+++ b/app/routes/spans.js
@@ -71,7 +71,7 @@ function index(req, res) {
 }
 
 /**
- * POST /api/spans/:user_id
+ * POST /api/spans/:span_id
  */
 function update(req, res) {
   req.check('id').isMongoId();
diff --git a/config/db.js b/config/db.js
index 08e1e00..5c9992c 100644
--- a/config/db.js
+++ b/config/db.js
@@ -13,6 +13,7 @@ const models = [
   'TestRun',
   'TimeClockException',
   'TimeClockSpan',
+  'TimeSheet',
   'User',
   'Workorder'
 ];
diff --git a/config/routes.js b/config/routes.js
index 33e5f77..dfa144d 100644
--- a/config/routes.js
+++ b/config/routes.js
@@ -107,6 +107,7 @@ module.exports = function (app, auth, piler, calendar, directory, config) {
   app.get('/api/timesheet/summary', timesheet.summary);
   app.get('/api/timesheet/:user_id/daysWorked', timesheet.daysWorked);
   app.get('/api/timesheet/:user_id/summary', timesheet.userSummary);
+  app.post('/api/timesheet/:user_id/approve', timesheet.approve);
 
   var pms = require('../app/controllers/pms');
   app.get('/api/pms', pms.index);