Appellants James Brodie, Larry Butcher and William Thompson (Employees) brought suit in the United States District Court, District of Wyoming, against Appellee General Chemical Corporation (Employer) alleging that the termination of their employment constituted a breach of an implied contract formed by an employee handbook and a standard operating procedures manual. Before Employees were terminated, Employer had unilaterally revoked those documents and, at trial, Employees challenged the effectiveness of Employer’s unilateral revocation. A panel of the United States Court of Appeals for the Tenth Circuit reversed a jury verdict in favor of Employer; however, that mandate was recalled by the court after another Tenth Circuit Court of Appeals panel issued an opinion in another case contradicting the opinion in this case. The United States Court of Appeals for the Tenth Circuit then submitted to this Court the following certified questions of Wyoming law:
1. Does the principle approved in Wilder v. Cody Country Chamber of Commerce,868 P.2d 211 , 219 (Wyo.1994), that “a promise by an employer or an employee under a subsisting contract to do more or take less than that contract requires is invalid unless the other party gives or promises to give something capable of serving as consideration” apply in employee handbook contract cases?
2. If Wilder applies in employee handbook contract cases, what degree of con *1265 sideration is necessary to satisfy the requirement, i.e., is nominal consideration sufficient?
FACTS
In 1986, when Employer took over the operations of Allied Chemical, the Employee Handbook and Standard Operating Procedures Manual (collectively the “handbooks”), which had been provided Employees earlier, were retained for plant operations. In May 1991, Employer revoked both handbooks to remove any contended employment rights beyond “at-will” contract status. In 1993, Employer eliminated Employees’ positions as part of a reduction in force and they brought suit challenging the 1991 unilateral revocation and asserting breach of employment contract. The jury returned a verdict in favor of Employer with respect to the employment claims and Employees appealed.
Among other issues, Employees contended in the federal appeals court that the trial court had erroneously instructed the jury that an employer could validly modify or revoke an existing contract of employment without additional consideration. In its opinion,
Brodie v. General Chemical Corp.,
DISCUSSION
Wyoming Implied Employment Contract Law
In
Wilder v. Cody Country Chamber of Commerce,
To determine the contents of any particular implied contract of employment, we examine under an objective test whether
*1266
the employer has intended, either by words or conduct, to include job security as part of the implied employment contract.
McDonald v. Mobil Coal Producing, Inc.,
In Wyoming, an employer may, under certain conditions, amend an employee handbook promising job security if it had previously included language in its handbook reserving the right to unilaterally modify.
Lincoln v. Wackenhut,
McDonald II Did Not Implicitly Recognize Unilateral Modification
The notion that this Court had implicitly recognized that an employer could unilaterally modify handbook provisions and restore at-will employment arose in
Durtsche v. American Colloid Co.,
Mobil Coal Producing distributed a handbook to Parks in September 1982, six months after his hiring. The handbook created job security; it abolished Parks’ at-will status.
Parks,
In
McDonald II,
we noted that McDonald signed on July 20, 1987, an employment application form which included a disclaimer of any employment status other than at-will. We again noted the disclaimer language contained in the employer handbook,
viz.,
“this handbook ... is not a comprehensive policies and procedures manual, nor an employment contract.”
McDonald II,
Taken together, McDonald I and II make clear that Mobil Coal Producing, the employer, revised its employee handbook from its “job security” nature in September 1982, when Parks was an employee, to its “at-will employment” nature before McDonald’s hiring in August 1987. Thus, at the time of McDonald’s hiring in August 1987, Mobil Coal Producing’s employee handbook contained an “insufficiently conspicuous” disclaimer that employment was at-will.
Clearly, McDonald I and McDonald II were promissory estoppel and disclaimer cases, not unilateral amendment cases as the Durtsche court thought. In McDonald I and II, the handbook did not purport to amend a “job security” status otherwise enjoyed by McDonald. The application form he signed and the handbook he received at the time he was hired purported that he was an at-will employee but they did so with inconspicuous language. The handbook discussed in Parks had been amended before McDonald was hired. In McDonald II, the sole question was whether the amendment which was in place before McDonald was hired was conspicuous. There was no need to first question whether Mobil Coal Producing had unilaterally amended a handbook during McDonald’s period of employment. Thus, in McDonald I and II, we did not “implicitly” recognize that an employer can unilaterally amend handbook provisions to restore at-will employment.
Contract Theory of Modification
We next address whether our decision in
Wilder
has resolved this issue. Employer contends that
Wilder
does not apply because it did not involve a handbook but rather an oral contract for employment allegedly expressly providing for job security. Employer contends that finding an implied-in-faet contract by recognition of handbook provisions involves an analysis which does not apply the normal contract law principles afforded to express contracts and further asserts that the distinction of express versus implied permits our applying different rules for modifying a handbook contract. The Michigan Supreme Court utilized an interpretation similar to Employer’s argument in
In Re Certified Question, Bankey v. Storer Broadcasting,
The
Bankey
rationale is inapposite for our purposes because, as explained above, our handbook decisions hold that an implied employment contract does arise from established contract law principles and our contract law concerning modification is well settled that an agreement altering a written contract, to be binding, must be based on consideration.
Harvard v. Anderson,
Were we to decide this issue on notions of fairness, the equities would favor the employees as we do not consider the employer’s concern about negotiating employment contracts on an individual basis significant enough to outweigh our understanding that employees would risk losing a valuable contractual right without their consent. Established contract law principles require that we answer the first certified question in the affirmative. The principle of additional consideration discussed in Wilder does apply to a modification of an employment handbook which restores at-will status.
Degree of Consideration
We perceive the second certified question as asking whether continued employment will suffice as consideration for a modification which restores at-will status. As just explained, the answer is no, separate consideration must be provided. A valid modification requires an offer, acceptance, and consideration.
Robinson,
CONCLUSION
The answer to the first certified question is yes, the principle of additional consideration discussed in Wilder applies when an employer modifies an implied job security provision to restore at-will status. The answer to the second certified question is no, continued employment will not suffice as consideration for the modification. New, separate consideration must be provided which constitutes either a benefit to the employee, a detriment to the employer or a bargained for exchange.
Notes
. Our analysis today assumes that the representations are made after employment has begun and is, therefore, a modification. A different situation is presented when the representation is made at the time that employment begins. In that case, the representation, if enforceable, is a term of the implied employment contract along with the other usual terms specifying pay, benefits, working hours, and job responsibilities under the rule that a single consideration can support several promises. Restatement (Second) of Contracts § 80(1) (1981).
. A third justice disagreed that promissory estop-pel principles applied under the facts of the case and concurred in the result only.
McDonald I,
