diff --git a/output/timetable.css b/output/timetable.css
index 555bece..05676a1 100644
--- a/output/timetable.css
+++ b/output/timetable.css
@@ -198,10 +198,9 @@ td.worker {
 
 }
 
-[data-night-at-derriford="0"] {
+/* [data-night-at-derriford="0"] {
     border: 1px dotted orange;
-    /* Attribute has this exact value */
-}
+} */
 
 th.site-title {
     transform: unset;
@@ -227,7 +226,7 @@ summary h2 {
     display: inline;
 }
 
-.derriford-night.shift-highlight {
+.remote-site-match.shift-highlight {
     background-color: yellow;
 }
 
diff --git a/output/timetable.js b/output/timetable.js
index c17a6c0..ec74399 100644
--- a/output/timetable.js
+++ b/output/timetable.js
@@ -320,7 +320,8 @@ $(".table-div + pre").each((n, pre) => {
 
 $("td").hover((e) => {
     //start hover
-    pair = $(e.target).closest('tr').find('td:first')[0].dataset.pair;
+    worker_td = $(e.target).closest('tr').find('td:first')[0]
+    pair = worker_td.dataset.pair;
     index = $(e.target).index() - 1;
     if (pair > 0) {
         $(`td[data-pair=${pair}]`).each((n, el) => {
@@ -330,9 +331,14 @@ $("td").hover((e) => {
     if (e.target.dataset.shift != undefined && e.target.dataset.shift.length > 0) {
         $(`td[data-shift=${e.target.dataset.shift}]`).addClass("shift-highlight")
 
-        if (e.target.dataset.shift.includes("night")) {
-            $(`td[data-night-at-derriford=1]`).siblings().addClass("derriford-night")
-        }
+        console.log(`td[data-remote-site='${e.target.dataset.shiftRemoteSite}']`)
+        console.log($(e.target).closest('tr').find(`td[data-remote-site='${e.target.dataset.shiftRemoteSite}']`))
+
+        $(`td[data-remote-site='${e.target.dataset.shiftRemoteSite}']`).closest('tr').find(`td[data-shift=${e.target.dataset.shift}]`).addClass("remote-site-match")
+        // console.log(e.target.dataset.shiftRemoteSite , worker_td.dataset.remoteSite)
+        // if (e.target.dataset.shiftRemoteSite == worker_td.dataset.remoteSite) {
+        //     $(`td[data-shift-remote-site=${e.target.dataset.shiftRemoteSite}]`).addClass("remote-site-match")
+        // }
     }
 
 }, (e) => {
@@ -340,7 +346,7 @@ $("td").hover((e) => {
     //end hover
     $("td.pair-match").removeClass("pair-match")
     $("td.shift-highlight").removeClass("shift-highlight")
-    $("td.derriford-night").removeClass("derriford-night")
+    $("td.remote-site-match").removeClass("remote-site-match")
 
 })
 
diff --git a/rota/shifts.py b/rota/shifts.py
index 7108a98..d291115 100644
--- a/rota/shifts.py
+++ b/rota/shifts.py
@@ -55,6 +55,9 @@ class SingleShift(object):
 
     postclear(2) / preclear(2)
 
+    require_remote_site_presence:
+        options: (site, required_number)
+
     night
 
     limit_grade_number:
@@ -123,7 +126,7 @@ class SingleShift(object):
         # self.total_shifts = length * len(days) * len(shift_days)
 
     def __str__(self):
-        return f"name: {self.name}, site: {self.site}, length: {self.length}, balance weighting: {self.balance_weighting}, balance offset: {self.balance_offset}, hard_constrain: {self.hard_constrain_shift}, workers required : {self.workers_required}, rota on nwds {self.rota_on_nwds}, assign as block: {self.assign_as_block}, force as block: {self.force_as_block}, constraints: {self.constraints}"  # , total shifts: {self.total_shifts}"
+        return f"name: {self.name}, site: {self.site}, length: {self.length}, balance weighting: {self.balance_weighting}, balance offset: {self.balance_offset}, hard_constrain: {self.hard_constrain_shift}, workers required : {self.workers_required}, rota on nwds {self.rota_on_nwds}, assign as block: {self.assign_as_block}, force as block: {self.force_as_block}, constraints: {self.constraints}, constraint_options: {self.constraint_options}"  # , total shifts: {self.total_shifts}"
 
     def get_shift_summary(self):
         """
@@ -181,7 +184,7 @@ class RotaBuilder(object):
         self.work_requests = set()
         self.work_requests_map = {}
 
-        self.workers = []
+        self.workers: list[Worker] = []
         self.worker_pairs = []
 
         # self.night_blocks = ["weekday", "weekend", "none"]
@@ -197,7 +200,6 @@ class RotaBuilder(object):
 
         self.constraint_options = {
             "ensure_1_st4_plus_on_nights": True,
-            "ensure_derriford_reg_for_nights": True,
             "balance_nights": True,
             "constrain_time_off_after_nights": False,
             "balance_nights_across_sites": True,
@@ -791,25 +793,6 @@ class RotaBuilder(object):
                 ),
             )
 
-        # def nightShiftDerrifordRule(model, week, shift):
-        #    derriford_workers = [w for w in self.workers if w.night_at_derriford >= 1]
-        #    # if not derriford_workers:
-        #    # return Constraint.Skip
-        #    return (
-        #        sum(
-        #            model.shift_week_worker_assigned[shift, week, w.id]
-        #            for w in derriford_workers
-        #        )
-        #        >= 1
-        #    )
-
-        # if self.constraint_options["ensure_derriford_reg_for_nights"]:
-        #    self.model.night_shifts_derriford_rule = Constraint(
-        #        [week for week in self.weeks],
-        #        [shift.name for shift in self.get_shifts_with_constraint("night")],
-        #        rule=nightShiftDerrifordRule,
-        #    )
-
         def presenceAtRemoteSite(model, week, shift, required_site, required_number):
             required_site_workers = [
                 w for w in self.workers if required_site == w.remote_site
@@ -2465,13 +2448,14 @@ class RotaBuilder(object):
                 a = "-"
                 shift_name = ""
 
+                # Loop through all the days possible shifts and see
+                # if the worker has been assigned
                 for shift in self.get_shift_names_by_week_day(week, day):
                     if model.works[worker.id, week, day, shift].value > 0:
                         shifts.append(shift)
                         a = shift[0]
                         shift_name = shift
                         break
-                    # If we haven't run just add the shift
                 title = f"{shift_name} ({d})"
                 css_class = day
                 unavailable_reason = ""
@@ -2503,8 +2487,14 @@ class RotaBuilder(object):
                     title = " ".join((title, "[REQUESTED]"))
                     requests = f" data-shift-request='{self.work_requests_map[worker.id, week, day]}'"
 
+                remote_site = ""
+                if shift_name:
+                    shift = self.get_shift_by_name(shift_name)
+                    if "require_remote_site_presence" in shift.constraints:
+                        remote_site = f" data-shift-remote-site='{shift.constraint_options['require_remote_site_presence'][0]}'"
+
                 shift_tds.append(
-                    f"<td title='{title}' class='rota-day {css_class}' data-shift='{shift_name}' data-available='{available}' data-unavailable_reason='{unavailable_reason}' data-date='{d}' data-week='{week}' data-day='{day}'{requests}{bank_holiday}>{a}</td>"
+                    f"<td title='{title}' class='rota-day {css_class}' data-shift='{shift_name}' data-available='{available}' data-unavailable_reason='{unavailable_reason}' data-date='{d}' data-week='{week}' data-day='{day}'{remote_site}{requests}{bank_holiday}>{a}</td>"
                 )
 
             shift_count = ""
@@ -2524,7 +2514,7 @@ class RotaBuilder(object):
             data-fte='{fte}' data-fte_adj='{fte_adj}' data-end_date='{end_date}' 
             data-worker-targets='{targets}' data-shift-counts='{worker_shift_counts}' 
             data-weekend-target='{weekend_target}' 
-            data-night-at-derriford='{nights_at_derriford}' 
+            data-remote-site='{remote_site}' 
             data-pair='{pair}'
             data-shift-balance-extra='{shift_balance_extra}'
             data-bank-holiday-extra='{bank_holiday_extra}'
@@ -2541,7 +2531,7 @@ class RotaBuilder(object):
                 targets=worker_targets,
                 worker_shift_counts=json.dumps(shift_count_dict),
                 weekend_target=worker.weekend_shift_target_number,
-                nights_at_derriford=worker.night_at_derriford,
+                remote_site=worker.remote_site,
                 grade=worker.grade,
                 pair=worker.pair,
                 shift_balance_extra=json.dumps(worker.shift_balance_extra),
diff --git a/rota/workers.py b/rota/workers.py
index 7d4c46e..e19770f 100644
--- a/rota/workers.py
+++ b/rota/workers.py
@@ -52,10 +52,6 @@ class Worker:
         self.bank_holiday_extra = bank_holiday_extra
 
         self.remote_site = remote_site
-        if remote_site == "plymouth" or remote_site == "":
-            self.night_at_derriford = 1
-        else:
-            self.night_at_derriford = 0
 
         self.previous_shifts = previous_shifts
 
@@ -181,12 +177,11 @@ class Worker:
     def __str__(self) -> str:
 
         nwd = ", ".join([str(i) for i in self.nwd]) if self.nwd is not None else ""
-        return "{} {} [{}] PROC SITE:{} ({})".format(
+        return "{} {} [{}] REMOTE SITE:{}".format(
             self.name,
             (self.site, self.grade, self.fte_adj),
             nwd,
             self.remote_site,
-            self.night_at_derriford,
         )
 
     def get_details(self) -> str:
diff --git a/test/test_rota.py b/test/test_rota.py
index 1ce7c81..0ee9583 100644
--- a/test/test_rota.py
+++ b/test/test_rota.py
@@ -22,7 +22,6 @@ class TestDemoRota:
 
     Rota.constraint_options["max_shifts_per_week"] = 5
     Rota.constraint_options["max_shifts_per_month"] = 31
-    Rota.constraint_options["ensure_derriford_reg_for_nights"] = False
     Rota.constraint_options["constrain_time_off_after_nights"] = False
     Rota.constraint_options["balance_nights_across_site"] = False
     Rota.constraint_options["balance_shifts"] = True
@@ -159,7 +158,7 @@ class TestDemoRota:
                 case _:
                     assert 1 == 0
 
-    def test_worker_shift_targets(self):
+    def test_worker_shift_targets2(self):
         shift_number = self.Rota.get_shift_summary_dict()
 
         for worker in self.Rota.workers:
@@ -197,7 +196,6 @@ class TestDemoRotaNights:
 
     Rota.constraint_options["max_shifts_per_week"] = 5
     Rota.constraint_options["max_shifts_per_month"] = 31
-    Rota.constraint_options["ensure_derriford_reg_for_nights"] = False
     Rota.constraint_options["limit_to_1_st2_on_nights"] = False
     Rota.constraint_options["constrain_time_off_after_nights"] = False
     Rota.constraint_options["balance_nights_across_site"] = False
@@ -868,7 +866,7 @@ class TestLimitConstraints:
             ),
         )
         self.Rota.build_and_solve(options={"ratio": 0.00})
-        self.Rota.export_rota_to_html("test9")
+        self.Rota.export_rota_to_html("remote1")
 
         group_workers = self.Rota.get_workers_by_group()
         for group in group_workers:
@@ -902,7 +900,7 @@ class TestLimitConstraints:
             ),
         )
         self.Rota.build_and_solve(options={"ratio": 0.00})
-        self.Rota.export_rota_to_html("test9")
+        self.Rota.export_rota_to_html("remote2")
 
         group_workers = self.Rota.get_workers_by_group()
         for group in group_workers: