Plaintiff appeals from the dismissal of his action as frivolous. We affirm.

Plaintiff, an inmate at New Hampshire State Prison, filed a civil rights action seeking declaratory, injunctive, and damages relief for two instances when he was not permitted by prison regulations to send sealed letters to the Liberty University School of Lifelong Learning in postage-prepaid envelopes supplied by the university. The envelopes contained plaintiff's request to enroll in summer classes and plaintiff's grades for the previous semesters. While prison regulations allowed sealed letters to be sent to any of ten listed persons or entities (e.g., president, vice-president, federal or state courts)--all other outgoing mail presumably had to be sent in unsealed envelopes for ready inspection--schools and universities were not included on the privileged list.1 Nevertheless, plaintiff claimed that his mail should be considered privileged because it contained plaintiff's grades, a personal matter. After prison officials refused plaintiff's request and required an unsealed mailing, plaintiff filed the present action challenging the prison mail policy and the prison officials' actions as violative of the constitution and the Family Educational and Privacy Rights Act of 1974, 20 U.S.C. § 1232g.

Concluding that plaintiff had no right to send his college transcripts in sealed envelopes, a magistrate judge recommended that the complaint be dismissed. The district court agreed, and plaintiff has now appealed.

The censorship2 of outgoing prisoner correspondence "is justified if the following criteria are met":First, the regulation or practice in question must further an important or substantial governmental interest unrelated to the suppression of expression. Prison officials may not censor inmate correspondence simply to eliminate unflattering or unwelcome opinions or factually inaccurate statements. Rather, they must show that a regulation authorizing mail censorship furthers one or more of the substantial governmental interests of security, order, and rehabilitation. Second, the limitation of First Amendment freedoms must be no greater than is necessary or essential to the protection of the particular governmental interest involved. Thus a restriction on inmate correspondence that furthers an important or substantial interest of penal administration will nevertheless be invalid if its sweep is unnecessarily broad. This does not mean, of course, that prison administrators may be required to show with certainty that adverse consequences would flow from the failure to censor a particular letter. Some latitude in anticipating the probable consequences of allowing certain speech in a prison environment is essential to the proper discharge of an administrator's duty. But any regulation or practice that restricts inmate correspondence must be generally necessary to protect one or more of the legitimate governmental interests identified above.

Procunier v. Martinez, 416 U.S. 396, 413-14, 94 S. Ct. 1800, 1811-12, 40 L. Ed. 2d 224 (1974). See also Thornburgh v. Abbott, 490 U.S. 401, 413, 109 S. Ct. 1874, 1881, 104 L. Ed. 2d 459 (1989) (Martinez standard applies when assessing the constitutionality of regulations concerning outgoing correspondence, but regulation of incoming mail is subject to more deferential reasonableness standard).

The challenged New Hampshire State Prison practice of requiring non-privileged outgoing mail to be submitted for inspection in unsealed envelopes satisfies both Martinez criteria. First, the practice furthers an important governmental interest--security. As the Supreme Court has recognized, ["p]erhaps the most obvious example of justifiable censorship of prisoner mail would be refusal to send ... letters concerning escape plans or containing other information concerning proposed criminal activity." Procunier v. Martinez, 416 U.S. at 413, 94 S.Ct. at 1811. Plaintiff would argue that his mail, directed to a school in an envelope supplied by the school, presented no security problem because escape or criminal activity plans could not fruitfully be transmitted in this manner. Plaintiff is wrong. Were the institution not a legitimate one or were the school's mail room employee in cahoots with plaintiff, security concerns could well be implicated.

Plaintiff argues that inspection of outgoing correspondence cannot rationally be justified as a security measure given, plaintiff says, that prison officials do not monitor prisoners' telephone calls or conversations with visitors, means by which prisoners could just as easily communicate escape plans. Plaintiff cites to a number of older cases which employed such reasoning in striking down outgoing mail inspection practices. We, however, rejected a similar argument in Feeley v. Sampson, 570 F.2d 364, 374 (1st Cir.1978). There, the district court had reasoned that "because detainees' visits went unmonitored, escape plans or contraband 'drops' could be plotted regardless of any surveillance of correspondence," and concluded that inspection of outgoing mail could therefore not be upheld on security grounds. Id. at 374. We rejected that reasoning and concluded, in substance, that unmonitored mail increased prisoners' opportunities for plotting escape and consequently surveillance was justified as a security measure. We adhere to that position.

The second Martinez requirement, that the limitation be no greater than necessary, is also met. The limitation is fairly minimal--plaintiff can correspond with the school provided he allows prison officials to check the correspondence--and there is no other way to determine whether escape plans or other proscribable matter is being sent except by looking at the correspondence. Plaintiff's constitutional rights were not violated. See United States v. Whalen, 940 F.2d 1027, 1035 (7th Cir.) ("it is well established that prisons have sound reasons for reading the outgoing mail of their inmates"), cert. denied, --- U.S. ----, 112 S. Ct. 403, 116 L. Ed. 2d 352 (1991); Gaines v. Lane, 790 F.2d 1299, 1304 (7th Cir.1986) (inspection of non-privileged outgoing mail does not violate prisoners' First Amendment rights); United States v. Kelton, 791 F.2d 101 (8th Cir.) (prisoner's Fourth Amendment rights not violated by prison official's inspection and copying of prisoner's outgoing mail), cert. denied, 479 U.S. 989, 107 S. Ct. 583, 93 L. Ed. 2d 586 (1986).

Nor were plaintiff's rights under the Family Educational and Privacy Rights Act, 20 U.S.C. § 1232g, violated. Nothing in that Act requires prison officials to take plaintiff's word that the envelope contained transcripts and accept the sealed mailing.

Affirmed.