diff --git a/apps/as/src/pages/approval-line-management/lib/validators.ts b/apps/as/src/pages/approval-line-management/lib/validators.ts
index a136d07d7..c5fbe0b71 100644
--- a/apps/as/src/pages/approval-line-management/lib/validators.ts
+++ b/apps/as/src/pages/approval-line-management/lib/validators.ts
@@ -15,11 +15,17 @@ export function validateAtrzOrder(rows: ElaprAplnRow[]): string | null {
   const visibleRows = getVisibleRows(rows);
 
   const receiverCount = visibleRows.filter((row) => row.atrzSeComCd === ATRZ_RECEIVER_CD).length;
+  if (receiverCount === 0) {
+    return "접수자는 반드시 등록해야 합니다.";
+  }
   if (receiverCount > 1) {
     return "접수자는 한 명만 등록할 수 있습니다.";
   }
 
   const finalCount = visibleRows.filter((row) => row.atrzSeComCd === ATRZ_FINAL_CD).length;
+  if (finalCount === 0) {
+    return "최종승인자는 반드시 등록해야 합니다.";
+  }
   if (finalCount > 1) {
     return "최종승인자는 한 명만 등록할 수 있습니다.";
   }
diff --git a/apps/as/src/pages/approval-line-management/ui/elapr-apln-grid.tsx b/apps/as/src/pages/approval-line-management/ui/elapr-apln-grid.tsx
index 3111673de..1dd757ff9 100644
--- a/apps/as/src/pages/approval-line-management/ui/elapr-apln-grid.tsx
+++ b/apps/as/src/pages/approval-line-management/ui/elapr-apln-grid.tsx
@@ -98,7 +98,6 @@ function ElaprAplnGrid({ elaprTmpltId }: ElaprAplnGridProps) {
   };
 
   const handleRowDelete = async (row: ElaprAplnRow) => {
-    if (!(await confirm("선택한 결재선을 삭제하시겠습니까?"))) return;
     markDeleted(row.rowKey);
   };
 
@@ -129,6 +128,8 @@ function ElaprAplnGrid({ elaprTmpltId }: ElaprAplnGridProps) {
       return;
     }
 
+    if (!(await confirm("결재선을 저장하시겠습니까?"))) return;
+
     await saveMultiMutation.mutateAsync({ body: payload, elaprTmpltId });
     alert("결재선이 저장되었습니다.");
     await aplnQuery.refetch();
@@ -158,12 +159,7 @@ function ElaprAplnGrid({ elaprTmpltId }: ElaprAplnGridProps) {
           </Button>
           <Button
             type="button"
-            disabled={
-              isDisabled ||
-              isEditingLocked ||
-              !canSave ||
-              saveMultiMutation.isPending
-            }
+            disabled={isDisabled || isEditingLocked || !canSave || saveMultiMutation.isPending}
             onClick={handleSaveAll}
           >
             결재선 저장
diff --git a/apps/as/src/pages/checklist-management/ui/cklst-preview-dialog.tsx b/apps/as/src/pages/checklist-management/ui/cklst-preview-dialog.tsx
index 408a98ea4..42f2edcf8 100644
--- a/apps/as/src/pages/checklist-management/ui/cklst-preview-dialog.tsx
+++ b/apps/as/src/pages/checklist-management/ui/cklst-preview-dialog.tsx
@@ -6,6 +6,9 @@ import {
   DialogContent,
   DialogHeader,
   DialogTitle,
+  Label,
+  RadioGroup,
+  RadioGroupItem,
   Table,
   TableBody,
   TableCell,
@@ -14,7 +17,7 @@ import {
   TableRow,
 } from "@common/components";
 
-import { buildRvwDisplayRows, formatRvwCnLvNo, formatTreeBranchPrefix } from "../model/build-rvw-display-rows";
+import { buildRvwDisplayRows, formatTreeBranchPrefix } from "../model/build-rvw-display-rows";
 import type { CklstRvwRow } from "../model/cklst-rvw-row-types";
 
 interface CklstPreviewDialogProps {
@@ -49,36 +52,48 @@ function CklstPreviewDialog({
           <p className="py-6 text-center text-muted-foreground">표시할 항목이 없습니다.</p>
         ) : (
           <Table>
+            <colgroup>
+              <col width="25%" />
+              <col width="50%" />
+              <col width="25%" />
+            </colgroup>
             <TableHeader>
               <TableRow>
-                <TableHead>점검항목</TableHead>
-                <TableHead>주요 검토내용</TableHead>
-                <TableHead>사용 여부</TableHead>
-                <TableHead>구분</TableHead>
+                <TableHead align="left">점검항목</TableHead>
+                <TableHead align="left">주요 검토내용</TableHead>
+                <TableHead>검토 여부</TableHead>
               </TableRow>
             </TableHeader>
             <TableBody>
               {displayRows.map(({ row, depth }) => {
                 const branchPrefix = formatTreeBranchPrefix(depth);
 
+                if (row.useYn === "N") return null;
+
                 return (
-                <TableRow key={row.rowKey}>
-                  <TableCell>
-                    <span className="inline-flex items-center gap-1">
-                      {branchPrefix ? (
-                        <span className="font-mono text-muted-foreground">{branchPrefix}</span>
-                      ) : null}
-                      <span>{getArtclLabel(row.cklstArtclSn)}</span>
-                    </span>
-                  </TableCell>
-                  <TableCell>{row.rvwCn ?? "—"}</TableCell>
-                  <TableCell align="center">
-                    {row.useYn === "Y" ? "예" : row.useYn === "N" ? "아니오" : "—"}
-                  </TableCell>
-                  <TableCell align="center">
-                    {formatRvwCnLvNo(row.rvwCnLvNo)}
-                  </TableCell>
-                </TableRow>
+                  <TableRow key={row.rowKey}>
+                    <TableCell align="left">
+                      <span className="inline-flex items-center gap-1">
+                        {branchPrefix ? (
+                          <span className="font-mono text-muted">{branchPrefix}</span>
+                        ) : null}
+                        <span>{getArtclLabel(row.cklstArtclSn)}</span>
+                      </span>
+                    </TableCell>
+                    <TableCell>{row.rvwCn ?? "—"}</TableCell>
+                    <TableCell align="center">
+                      <RadioGroup className="flex items-center justify-center">
+                        <div className="flex items-center gap-1">
+                          <RadioGroupItem value="Y" id={`${row.rowKey}-use-y`} />
+                          <Label htmlFor={`${row.rowKey}-use-y`}>예</Label>
+                        </div>
+                        <div className="flex items-center gap-1">
+                          <RadioGroupItem value="N" id={`${row.rowKey}-use-n`} />
+                          <Label htmlFor={`${row.rowKey}-use-n`}>아니오</Label>
+                        </div>
+                      </RadioGroup>
+                    </TableCell>
+                  </TableRow>
                 );
               })}
             </TableBody>
diff --git a/apps/as/src/pages/checklist-management/ui/cklst-rvw-grid.tsx b/apps/as/src/pages/checklist-management/ui/cklst-rvw-grid.tsx
index e44a7743b..1397d79ff 100644
--- a/apps/as/src/pages/checklist-management/ui/cklst-rvw-grid.tsx
+++ b/apps/as/src/pages/checklist-management/ui/cklst-rvw-grid.tsx
@@ -155,17 +155,31 @@ function CklstRvwGrid({ selectedCklst }: CklstRvwGridProps) {
   );
 
   const handleDelete = async (row: CklstRvwRow) => {
-    if (!(await confirm("선택한 항목을 삭제하시겠습니까?"))) return;
+    if (
+      !(await confirm(
+        "선택한 항목을 삭제하시겠습니까?\n삭제한 항목은 되돌릴 수 없으며, 하위 항목까지 모두 삭제됩니다.",
+      ))
+    )
+      return;
 
     if (row.isNew) {
       removeRowLocal(row.rowKey);
       return;
     }
 
-    if (row.cklstRvwSn == null) return;
+    const children = rows.filter((r) => r.upCklstRvwSn === row.cklstRvwSn);
+    if (children.length > 0) {
+      for (const child of children) {
+        await deleteMutation.mutateAsync({
+          cklstRvwSn: child.cklstRvwSn!,
+          cklstArtclSn: child.cklstArtclSn,
+          cklstSn: child.cklstSn,
+        });
+      }
+    }
 
     await deleteMutation.mutateAsync({
-      cklstRvwSn: row.cklstRvwSn,
+      cklstRvwSn: row.cklstRvwSn!,
       cklstArtclSn: row.cklstArtclSn,
       cklstSn: row.cklstSn,
     });
@@ -184,6 +198,8 @@ function CklstRvwGrid({ selectedCklst }: CklstRvwGridProps) {
         return;
       }
 
+      if (!(await confirm("체크리스트 항목을 저장하시겠습니까?"))) return;
+
       if (row.isNew) {
         await createMutation.mutateAsync({
           cklstSn: row.cklstSn,
@@ -233,9 +249,13 @@ function CklstRvwGrid({ selectedCklst }: CklstRvwGridProps) {
             미리보기
           </Button>
           <Button type="button" color="white" disabled={isDisabled} onClick={addRootRow}>
-            추가
+            + 체크리스트 추가
           </Button>
-          <Button type="button" disabled={isDisabled || isSaving} onClick={handleSave}>
+          <Button
+            type="button"
+            disabled={getDirtyRows().length === 0 || isDisabled || isSaving}
+            onClick={handleSave}
+          >
             저장
           </Button>
         </div>
@@ -248,7 +268,7 @@ function CklstRvwGrid({ selectedCklst }: CklstRvwGridProps) {
         </div>
       ) : isDisabled ? (
         <p className="py-8 text-center text-lg text-muted-foreground">
-          상단에서 점검표를 선택하면 체크리스트 항목을 편집할 수 있습니다.
+          점검표를 선택하면 체크리스트 항목을 편집할 수 있습니다.
         </p>
       ) : displayRows.length === 0 ? (
         <p className="py-8 text-center text-lg text-muted-foreground">
diff --git a/apps/as/src/pages/checklist-management/ui/cklst-rvw-row.tsx b/apps/as/src/pages/checklist-management/ui/cklst-rvw-row.tsx
index a7696794f..d248de9a1 100644
--- a/apps/as/src/pages/checklist-management/ui/cklst-rvw-row.tsx
+++ b/apps/as/src/pages/checklist-management/ui/cklst-rvw-row.tsx
@@ -16,7 +16,11 @@ import {
   TableRow,
 } from "@common/components";
 
-import { canAddChildRow, formatRvwCnLvNo, formatTreeBranchPrefix } from "../model/build-rvw-display-rows";
+import {
+  canAddChildRow,
+  formatRvwCnLvNo,
+  formatTreeBranchPrefix,
+} from "../model/build-rvw-display-rows";
 import type { CklstRvwRow } from "../model/cklst-rvw-row-types";
 
 interface CklstRvwRowProps {
@@ -44,11 +48,12 @@ function CklstRvwRowComponent({
       <TableCell>
         <div className="flex min-w-[12rem] items-center gap-1">
           {branchPrefix ? (
-            <span className="shrink-0 font-mono text-muted-foreground">{branchPrefix}</span>
+            <span className="shrink-0 font-mono text-muted">{branchPrefix}</span>
           ) : null}
           <Select
             value={row.cklstArtclSn ? String(row.cklstArtclSn) : ""}
             onValueChange={(v) => onChange({ cklstArtclSn: Number(v), isDirty: true })}
+            disabled={!row.isNew}
           >
             <SelectTrigger className="w-full flex-1">
               <SelectValue placeholder="점검항목 선택" />