How to best enforce single-level recursion in a SQL table?

CREATE TABLE Branch (
    branch_id INT NOT NULL PRIMARY KEY IDENTITY(1,1),
    branch_name VARCHAR(80) NOT NULL,
    street VARCHAR(80) NULL,
    city VARCHAR(30) NULL,
    state CHAR(2) NULL,
    zip CHAR(5) NULL,
    is_satellite_office BIT NOT NULL DEFAULT(0),
    satellite_to_branch_id INT NULL REFERENCES Branch(branch_id)
)

CONSTRAINT [CK_Branch] CHECK
  (
    (is_satellite_office = 0 AND satellite_to_branch_id IS NULL)
    OR (is_satellite_office = 1 AND satellite_to_branch_id IS NOT NULL)
  )

CREATE TABLE Branch (
    branch_id INT NOT NULL PRIMARY KEY IDENTITY(1,1),
    branch_name VARCHAR(80) NOT NULL,
    street VARCHAR(80) NULL,
    city VARCHAR(30) NULL,
    state CHAR(2) NULL,
    zip CHAR(5) NULL,
    parent_id int NULL
)

SELECT
  PARENT.BRANCH_NAME AS PARENT_BRANCH
 ,CHILD.BRANCH_NAME AS CHILD_BRANCH
FROM
  BRANCH PARENT
 ,BRANCH CHILD
WHERE CHILD.PARENT_ID PARENT.BRANCH_ID

SELECT *
FROM
  BRANCH B1
 ,BRANCH B2
 ,BRANCH B3
WHERE B1.PARENT_ID = :NEW.NEW_PARENT_ID
  AND B2.PARENT_ID = B1.BRANCH_ID
  AND B2.PARENT_ID = B3.BRANCH_ID;