diff --git a/add_installation.php b/add_installation.php
index f22f38b..25f3c34 100644
--- a/add_installation.php
+++ b/add_installation.php
@@ -7,25 +7,21 @@ if ($_SERVER['REQUEST_METHOD'] === 'POST') {
     $address = trim($_POST['address'] ?? '');
     $technician_name = trim($_POST['technician_name'] ?? '');
     $observations = trim($_POST['observations'] ?? '');
+    $status = trim($_POST['status'] ?? 'ativo');
     $voltage = trim($_POST['voltage'] ?? null);
     $phase_neutral_ground = trim($_POST['phase_neutral_ground'] ?? null);
     $breaker_output = trim($_POST['breaker_output'] ?? null);
 
-    if (empty($client_name) || empty($address) || empty($technician_name)) {
-        $_SESSION['message'] = 'Por favor, preencha todos os campos obrigatórios.';
-        $_SESSION['message_type'] = 'danger';
-        header('Location: index.php');
-        exit;
-    }
+    // Validation removed to allow incomplete forms
 
     $pdo = db();
     try {
         $pdo->beginTransaction();
 
         $stmt = $pdo->prepare(
-            "INSERT INTO installations (client_name, address, technician_name, observations, voltage, phase_neutral_ground, breaker_output) VALUES (?, ?, ?, ?, ?, ?, ?)"
+            "INSERT INTO installations (client_name, address, technician_name, observations, status, voltage, phase_neutral_ground, breaker_output) VALUES (?, ?, ?, ?, ?, ?, ?, ?)"
         );
-        $stmt->execute([$client_name, $address, $technician_name, $observations, $voltage, $phase_neutral_ground, $breaker_output]);
+        $stmt->execute([$client_name, $address, $technician_name, $observations, $status, $voltage, $phase_neutral_ground, $breaker_output]);
         $installation_id = $pdo->lastInsertId();
 
         // Handle multiple file uploads
@@ -75,4 +71,4 @@ if ($_SERVER['REQUEST_METHOD'] === 'POST') {
 }
 
 header('Location: index.php');
-exit;
\ No newline at end of file
+exit;
diff --git a/db/migrations/005_add_status_to_installations.sql b/db/migrations/005_add_status_to_installations.sql
new file mode 100644
index 0000000..4a281f3
--- /dev/null
+++ b/db/migrations/005_add_status_to_installations.sql
@@ -0,0 +1 @@
+ALTER TABLE installations ADD COLUMN status VARCHAR(50) NOT NULL DEFAULT 'ativo' COMMENT 'Status da instalação: ativo, em manutenção';
\ No newline at end of file
diff --git a/index.php b/index.php
index fd81fa7..6a92089 100644
--- a/index.php
+++ b/index.php
@@ -173,9 +173,7 @@ try {
                                     <th>Cliente</th>
                                     <th>Endereço</th>
                                     <th>Técnico</th>
-                                    <th>Tensão</th>
-                                    <th>Fase/Neutro</th>
-                                    <th>Disjuntor</th>
+                                    <th>Status</th>
                                     <th>Data</th>
                                     <th>Ações</th>
                                 </tr>
@@ -183,7 +181,7 @@ try {
                             <tbody>
                                 <?php if (empty($installations) && !isset($db_error)): ?>
                                     <tr>
-                                        <td colspan="9" class="text-center">Nenhuma instalação encontrada.</td>
+                                        <td colspan="7" class="text-center">Nenhuma instalação encontrada.</td>
                                     </tr>
                                 <?php else: ?>
                                     <?php foreach ($installations as $inst): ?>
@@ -191,6 +189,8 @@ try {
                                         $img_stmt = $pdo->prepare("SELECT image_path FROM installation_images WHERE installation_id = ? ORDER BY id ASC LIMIT 1");
                                         $img_stmt->execute([$inst['id']]);
                                         $first_image = $img_stmt->fetchColumn();
+                                        
+                                        $status_badge_class = $inst['status'] == 'ativo' ? 'bg-success' : 'bg-warning';
                                         ?>
                                         <tr>
                                             <td>
@@ -202,16 +202,26 @@ try {
                                                     N/A
                                                 <?php endif; ?>
                                             </td>
-                                            <td><?php echo htmlspecialchars($inst['client_name']); ?></td>
-                                            <td><?php echo htmlspecialchars($inst['address']); ?></td>
-                                            <td><?php echo htmlspecialchars($inst['technician_name']); ?></td>
-                                            <td><?php echo htmlspecialchars($inst['voltage'] ?? 'N/A'); ?></td>
-                                            <td><?php echo htmlspecialchars($inst['phase_neutral_ground'] ?? 'N/A'); ?></td>
-                                            <td><?php echo htmlspecialchars($inst['breaker_output'] ?? 'N/A'); ?></td>
+                                            <td><?php echo htmlspecialchars($inst['client_name'] ?: 'N/A'); ?></td>
+                                            <td><?php echo htmlspecialchars($inst['address'] ?: 'N/A'); ?></td>
+                                            <td><?php echo htmlspecialchars($inst['technician_name'] ?: 'N/A'); ?></td>
+                                            <td><span class="badge <?php echo $status_badge_class; ?>"><?php echo ucfirst(htmlspecialchars($inst['status'])); ?></span></td>
                                             <td><?php echo date("d/m/Y", strtotime($inst['created_at'])); ?></td>
                                             <td>
-                                                <a href="#" class="btn btn-sm btn-outline-secondary"><i class="bi bi-pencil-square"></i></a>
-                                                <a href="#" class="btn btn-sm btn-outline-danger"><i class="bi bi-trash"></i></a>
+                                                <div class="btn-group">
+                                                    <form action="update_status.php" method="POST" style="display: inline-block;">
+                                                        <input type="hidden" name="id" value="<?php echo $inst['id']; ?>">
+                                                        <input type="hidden" name="status" value="ativo">
+                                                        <button type="submit" class="btn btn-sm btn-outline-success" title="Marcar como Ativo"><i class="bi bi-check-circle"></i></button>
+                                                    </form>
+                                                    <form action="update_status.php" method="POST" style="display: inline-block;">
+                                                        <input type="hidden" name="id" value="<?php echo $inst['id']; ?>">
+                                                        <input type="hidden" name="status" value="em manutenção">
+                                                        <button type="submit" class="btn btn-sm btn-outline-warning" title="Marcar como Em Manutenção"><i class="bi bi-tools"></i></button>
+                                                    </form>
+                                                    <a href="#" class="btn btn-sm btn-outline-secondary" title="Editar"><i class="bi bi-pencil-square"></i></a>
+                                                    <a href="#" class="btn btn-sm btn-outline-danger" title="Excluir"><i class="bi bi-trash"></i></a>
+                                                </div>
                                             </td>
                                         </tr>
                                     <?php endforeach; ?>
@@ -234,37 +244,48 @@ try {
                 </div>
                 <div class="modal-body">
                     <form action="add_installation.php" method="POST" enctype="multipart/form-data">
-                        <div class="mb-3">
-                            <label for="client_name" class="form-label">Nome do Cliente</label>
-                            <input type="text" class="form-control" id="client_name" name="client_name" required>
+                        <div class="row">
+                            <div class="col-md-6 mb-3">
+                                <label for="client_name" class="form-label">Nome do Cliente</label>
+                                <input type="text" class="form-control" id="client_name" name="client_name">
+                            </div>
+                            <div class="col-md-6 mb-3">
+                                <label for="technician_name" class="form-label">Nome do Técnico</label>
+                                <input type="text" class="form-control" id="technician_name" name="technician_name">
+                            </div>
                         </div>
                         <div class="mb-3">
                             <label for="address" class="form-label">Endereço da Instalação</label>
-                            <textarea class="form-control" id="address" name="address" rows="3" required></textarea>
-                        </div>
-                        <div class="mb-3">
-                            <label for="technician_name" class="form-label">Nome do Técnico</label>
-                            <input type="text" class="form-control" id="technician_name" name="technician_name" required>
+                            <textarea class="form-control" id="address" name="address" rows="2"></textarea>
                         </div>
                         <div class="mb-3">
                             <label for="observations" class="form-label">Observações</label>
-                            <textarea class="form-control" id="observations" name="observations" rows="3"></textarea>
+                            <textarea class="form-control" id="observations" name="observations" rows="2"></textarea>
                         </div>
 
-                        <div class="mb-3">
-                            <label for="images" class="form-label">Imagens da Instalação</label>
-                            <input class="form-control" type="file" id="images" name="images[]" accept="image/*" multiple>
+                        <div class="row">
+                            <div class="col-md-6 mb-3">
+                                <label for="images" class="form-label">Imagens da Instalação</label>
+                                <input class="form-control" type="file" id="images" name="images[]" accept="image/*" multiple>
+                            </div>
+                            <div class="col-md-6 mb-3">
+                                <label for="status" class="form-label">Status</label>
+                                <select class="form-select" id="status" name="status">
+                                    <option value="ativo" selected>Ativo</option>
+                                    <option value="em manutenção">Em Manutenção</option>
+                                </select>
+                            </div>
                         </div>
 
                         <hr>
-                        <h6 class="mb-3">Medições Elétricas</h6>
+                        <h6 class="mb-3">Medições Elétricas (Opcional)</h6>
                         <div class="row">
                             <div class="col-md-4 mb-3">
                                 <label for="voltage" class="form-label">Tensão (V)</label>
                                 <input type="text" class="form-control" id="voltage" name="voltage">
                             </div>
                             <div class="col-md-4 mb-3">
-                                <label for="phase_neutral_ground" class="form-label">Fase-Neutro-Terra</label>
+                                <label for="phase_neutral_ground" class="form-label">Fase-Neutro-Terra</e-label>
                                 <input type="text" class="form-control" id="phase_neutral_ground" name="phase_neutral_ground">
                             </div>
                             <div class="col-md-4 mb-3">
@@ -285,4 +306,4 @@ try {
 
     <script src="https://cdn.jsdelivr.net/npm/bootstrap@5.3.3/dist/js/bootstrap.bundle.min.js"></script>
 </body>
-</html>
\ No newline at end of file
+</html>
diff --git a/update_status.php b/update_status.php
new file mode 100644
index 0000000..6436b79
--- /dev/null
+++ b/update_status.php
@@ -0,0 +1,26 @@
+<?php
+session_start();
+require_once __DIR__ . '/db/config.php';
+
+if ($_SERVER['REQUEST_METHOD'] === 'POST') {
+    $id = $_POST['id'] ?? null;
+    $status = $_POST['status'] ?? null;
+
+    if ($id && $status) {
+        try {
+            $pdo = db();
+            $stmt = $pdo->prepare("UPDATE installations SET status = ? WHERE id = ?");
+            $stmt->execute([$status, $id]);
+
+            $_SESSION['message'] = 'Status atualizado com sucesso!';
+            $_SESSION['message_type'] = 'success';
+        } catch (PDOException $e) {
+            error_log("Status update error: " . $e->getMessage());
+            $_SESSION['message'] = 'Erro ao atualizar o status.';
+            $_SESSION['message_type'] = 'danger';
+        }
+    }
+}
+
+header('Location: index.php');
+exit;