This petition for certiorari and prohibition assails the Resolution dated July 12, 1994 of the respondent National Labor Relations Commission which affirmed the decision of the Labor Arbiter, the dispositive portion of which reads:

CONFORMABLY WITH THE FOREGOING, judgment is hereby rendered finding complainant's dismissal valid and in accordance with procedural due process.

As financial assistance, however, respondents are hereby ordered to give complainant the sum of P5,000.00.

SO ORDERED."^[1]

and the Resolution dated October 3, 1994 denying the motion for reconsideration of petitioner.

Petitioner Ricardo E. Escanlar worked with Autobus Industries, Inc. (Autobus for brevity) as a Cutting Machine Operator since January 8, 1981 with a salary of P162.16 per day. He was the recipient of two (2) Plaques of Appreciation as Model Employee in 1987 and as Valuable Employee in 1988. He was later elected President of the Autobus Workers' Union (AWU), the union for the rank and file employees.

On January 29, 1993, Engr. Zosimo Prospero Chavez, Production Manager of Autobus, received a handwritten report^[2] from one Reynaldo T. Andres, a supervisor, pertinent portions of which are quoted hereunder:

"1. That in the morning of January 29, 1993, Mr. Andres told the herein complainant, together with another employee of the company their reassignment to the other section of the company as these latter sections lack manpower; that herein complainant shall be reassigned to the `Washer Section' while the other to the `Painting Section';

"2. That despite being told of the reason for his transfer, Mr. Escanlar questioned his transfer to the `Washer Section';

"3. That on the way to his assigned section, herein complainant asked for an eye goggle to be used in his work; that a certain Mr. Andres told complainant that there was one goggle in the section where he is assigned;

"4. That herein complainant refused to use the goggles saying that it might have some `ketong' in it; that no new goggles were issued to the complainant; that the latter was given instructions by Mr. Andres; that Mr. Andres proceeded to the `Painting Section';

"5. That at around 6:55 a.m. while on his way back to the `Washer Section,' Mr. Andres saw herein complainant talking to a certain Odelon Gamora; that the two talked for about two (2) minutes; that after their conversation, Mr. Andres approached the complainant; that at this instance Mr. Escanlar told Mr. Andres that he (complainant) did not like the way Mr. Andres chose personnel to go on overtime; that complainant went on further saying that Mr. Andres chose only persons who are close to him and from those who treat him for a drink; that Mr. Andres told complainant to ask a certain Mr. Tomas Marahit who was near if the complainant's allegations were true;

"6. That thereafter, herein complainant answered back by saying `Gago Ka' to Mr. Andres; that the latter told the former that they should talk later at his (Mr. Andres) office but the complainant again called him (Mr. Andres) `Gago Ka';

"7. That at this juncture, Mr. Andres deemed it proper to leave complainant; that while Mr. Andres was already in the Seam Weld Section of the company, complainant continued to stare at him without doing his job; that Mr. Andres decided to ask complainant what his problem was; that herein complainant retorted by saying: `BAKIT ANONG GUSTO MO, TANG INA MO'; Mr. Andres just left him (complainant);

"8. That at about 8:30 a.m. of the same day, while Mr. Andres was on his way to the canteen, herein complainant approached him (Mr. Andres) asking what he told the office regarding the incident between them; that Mr. Andres told the complainant to just ask the management about the matter; that complainant said `Panapanahon lang yan, panahon mo ngayon';

"9. That at 3:08 p.m. of the same day, complainant approached Mr. Andres in the canteen and said `Patunayan mong minura kita at kung hindi, tandaan mo yan'."

On February 5, 1993, Engr. Chavez issued a memorandum^[3] to petitioner Escanlar requiring the latter to explain in writing within 48 hours from receipt thereof why no disciplinary action should be taken against him pursuant to the company's Code of Discipline, for addressing Reynaldo T. Andres, his supervisor, in profane or obscene language and for threatening him.

On February 6, 1993, Reynaldo Andres wrote a memorandum^[4] to Engr. Chavez that petitioner Escanlar had again threatened him the previous day at the basketball court of the company premises.

On February 8, 1993, petitioner Escanlar submitted a written explanation^[5] to Engr. Chavez. On the same day, Engr. Chavez through a memorandum^[6] informed petitioner Escanlar of the scheduled hearing of the January 29 incident on February 17, 1993. The hearing was continued on March 12, 1993.

After the administrative investigation, petitioner Escanlar was served a Notice of Termination^[7] dated April 19, 1993, for gross misconduct, i.e., uttering unsavory remarks and threatening his supervisor with physical harm.

On April 21, 1993, petitioner filed a complaint for illegal dismissal against Autobus. After the submission by the parties of their respective position papers, the case was deemed submitted for resolution. On October 29, 1993, Labor Arbiter Melquiades Sol D. Del Rosario rendered a decision finding the dismissal of petitioner valid, pertinent portions of which are quoted hereunder:

"Subjecting the evidence on record to a close scrutiny, this Arbitration Branch notes that the immediate cause of the row was the order of transfer given by the Supervisor, Mr. Andres to complainant and Julieto Anober from the Cutting Section to the Washer and Painting Sections, respectively. Complainant felt that being a machine operator and union president at that, his transfer to the washer section is without legal and justifiable basis and this constituted harassment. The records discloses, however, that the very Collective Bargaining Agreement, signed by the union headed by complainant and respondent provides for such transfer as management prerogative of respondent. Article VI of the C.B.A. (Annex '1,' Respondent's Rejoinder to Reply to Position Paper), reads:

'The union hereby recognizes the company's right x x x to transfer employees from one job to another; and to make changes in the duties of employees as the company may consider fit and proper to the conduct of its business and to exercise the inherent and customary prerogative and functions of management.'

With this blanket grant of management prerogative, complainant who headed the union panel that concluded the C.B.A. with respondent company is now estopped to question his transfer of work. Further, the reason given for the transfer is the lack of manpower to the two (2) sections and there is no showing that the transfer is permanent. There is no evidence on record that showed complainant's transfer as permanent. If at all it was done by respondent to meet the exigencies of the situation on account of a dearth in manpower. Finally, complainant's transfer and subsequent dismissal can not be termed unfair labor practice on account of union busting because complainant failed to show by concrete proof that all the other officers of the union have been removed or are on the verge of being so. As it appears on records, the union has been in existence prior to complainant's ascendancy as president of the union and even with complainant at the helm of the union as president, respondent company readily concluded a Collective Bargaining Agreement with the union. If union busting has been the agenda of respondent, complainant would not find himself all alone in his present predicament but his co-union officers likewise; but this is not the picture obtaining.

In fine, this Arbitration Branch does not find any unfair labor practice committed by respondents as an aftermath of complainant's dismissal.

With regard to the issue of illegal dismissal, there is evidence on record that complainant violated Sec. 6 of Rule No. 28 of the Code of Discipline of respondent company, which provides:

'Seksiyon 6- ASAL AT KILOS pag-insulto o panghihiya, pagbanta ng pananakit o pagpakita ng anumang sinasadyang di paggalang sa isang superbisor o sino mang opisyal ng kumpanya.'

The transfer of complainant from the cutting section to the washer section has undoubtedly bruised complainant's ego, and created a rancor in his heart not only because he has been assigned for quite sometime to operate a machine but also because he is the president of the worker's union in the company. He had therefore a reason to commit the acts complained of by respondents. This Arbitration Branch therefore gives more weight and credence to the supervisor's complaint that on four (4) occasions on January 29, 1993, complainant committed acts that violated said rule. These acts are:

That at around 6:55 a.m. when complainant uttered against his supervisor 'gago ka' (twice) when the latter was accused with playing favorites in the choosing of employees for overtime work, when the supervisor pointed to one Tomas Marahit who can deny the charge of favoritism; that the complainant uttered the words 'bakit, anong gusto mo, tang ina mo' upon being approached by the supervisor to ask what the problem is because complainant was not doing his work but merely staring at him; that at 8:30 a.m., when the supervisor on his way to the canteen was threatened by complainant when he said, 'panapanahon lang iyan, panahon mo ngayon' when not told about the contents of the supervisor's report to management concerning the incident that transpired between the two (2) of them; and that at 3:08 of the same day, again at the canteen when complainant approached his supervisor and uttered the following words: 'Patunayan mong minura kita at kung hindi, tandaan mo iyan.'

To these claims of the supervisor, complainant could only give a general denial. As between a positive averment and a mere denial the former should be accorded more weight and belief. Moreover, in complainant's attempt to twist facts, he claims that it was the supervisor who uttered profane language but during the investigation of February 17, 1993, he admitted that he did not hear the supervisor uttered any bad word. Rather it was his co-worker Julieto Anober who told him about it not at the time the statement was uttered but in the afternoon when said co-worker was about to go home. This would constitute an after thought not worthy of credence. Furthermore, the contents of Julieto Anober's affidavit did not mention during the investigation by the fact finding committee on March 12, 1993 said bad words but only the word 'gago' as having been uttered by the supervisor and relayed to complainant in the afternoon when he was about to go home (Annex 'G-5,' Respondent's Rejoinder to Reply to Position Paper). He simply said, 'iyan lang ang sinabi ko kay Ric' (Complainant) nuong kinahapunan x x x pauwi na ako (Annex 'G-6,' Supra).

The utterance of complainant are four-square with the violated rule aforecited. As there is legal cause and procedural due process accorded to complainant, this Arbitration Branch so holds and declares complainant's dismissal to be valid."^[8]

On appeal, the decision was affirmed by respondent National Labor Relations Commission in its Resolution^[9] dated July 12, 1994.

Dissatisfied with the NLRC decision, petitioner has come to this Court via this petition for certiorari and prohibition, contending that respondent NLRC acted with grave abuse of discretion in affirming the decision of the labor arbiter.

Petitioner asserts that there are questions of fact which have been overlooked and misconstrued by the labor arbiter and the NLRC.

It is well-settled in this jurisdiction that factual findings of the NLRC, particularly when they coincide with those of the Labor Arbiter, are accorded respect, even finality, and will not be disturbed for as long as such findings are supported by substantial evidence.^[10] In the instant case, we have no reason to deviate from this policy as petitioner failed to convince us that the findings of the labor arbiter as affirmed by the NLRC are devoid of basis or are otherwise capricious or arbitrary.^[11]

Petitioner was dismissed by respondent Autobus for violation of Section 6 (B) of the company's Code of Discipline, to wit:

"B. SEKSIYON 6. ASAL AT KILOS

24. Pag-insulto o panghihiya, pagbabanta ng pananakit o pagpapakita ng anumang sinasadyang di-paggalang sa isang superbisor o sino mang opisyal ng kumpanya.

Takdang Parusa: Suspensiyon hanggang sa pagtitiwalag, ayon sa bigat ng pagkakasala."^[12]

which is considered as an act of gross misconduct and is a valid ground for terminating an employee pursuant to Article 282 of the Labor Code.

Misconduct is improper or wrong conduct. It is the transgression of some established and definite rule of action, a forbidden act, a dereliction of duty, willful in character, and implies wrongful intent and not mere error in judgment. The misconduct must be of such a grave and aggravated character and not merely trivial or unimportant.^[13] The charge of serious misconduct finds ample support in the record. Petitioner failed to satisfactorily rebut this accusation, his only defense being self-serving denials.

The repeated utterances by petitioner of obscene, insulting or offensive words against a superior were not only destructive of the morale of his co-employees and a violation of the company rules and regulations, but also constitute gross misconduct which is one of the grounds provided for by law to terminate the services of an employee.^[14] His attitude toward his supervisor, Reynaldo T. Andres, amounted to insubordination and conduct unbecoming of an employee which merited the penalty of dismissal.^[15]

Suffice it to state that an employee may be validly dismissed for violation of a reasonable company rule or regulation adopted for the conduct of the company's business.^[16] It is the recognized prerogative of the employer to transfer and reassign employees according to the requirements of its business. For indeed, regulation of manpower by the company clearly falls within the ambit of management prerogative. A valid exercise of management prerogative is one which, among others, covers: work assignment, working methods, time, supervision of workers, transfer of employees, work supervision, and the discipline, dismissal and recall of workers. Except as provided for, or limited by special laws, an employer is free to regulate, according to his own discretion and judgment, all aspects of employment.^[17]

Then petitioner makes the farfetched claim that his dismissal is by reason of his being the union president, thus Autobus is allegedly guilty of unfair labor practice. This contention is devoid of any legal foundation. We agree with the observation of the respondent NLRC that:

"x x x. The records are devoid of any substantial evidence that would establish the theory that the dismissal of herein complainant was entirely and exclusively motivated by the employees' union activities or affiliations nor brought about by a clear discriminatory motive."^[18]

Finally, petitioner assails the proceedings during the administrative investigation claiming violation of due process. We are not convinced.

The twin requirements of notice and hearing constitute the essential elements of due process. Due process of law simply means giving opportunity to be heard before judgment is rendered. In fact, there is no violation of due process even if no hearing was conducted, where the party was given a chance to explain his side of the controversy. What is frowned upon is the denial of the opportunity to be heard.^[19]

A perusal of the record reveals that petitioner was duly notified of the charges against him and given the opportunity to defend himself via a written explanation and thereafter, to adduce evidence on his behalf during a formal hearing where he was represented by a counsel of his own choice.

A formal trial-type hearing is not even essential to due process. It is enough that the parties are given a fair and reasonable opportunity to explain their respective sides of the controversy and to present supporting evidence on which a fair decision can be based.^[20] This type of hearing is not even mandatory in cases of complaints lodged before the Labor Arbiter.^[21]

WHEREFORE, the petition is DISMISSED. The resolution of respondent NLRC affirming the decision of the Labor Arbiter is AFFIRMED.

SO ORDERED.

Regalado, Melo, Puno, and Mendoza, JJ., concur.

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^[1] Rollo, p. 38.

^[2] Annex "F" of Petition, NLRC Resolution, pp.4-5; Rollo, pp.44-45.

^[3] Rollo, p. 213.

^[4] Rollo, p. 14.

^[5] Rollo, p.16.

^[6] Rollo, p. 15.

^[7] Rollo, pp. 28-29.

^[8] Decision of Labor Arbiter; Annex "E" of Petition; Rollo, pp. 34-38.

^[9] Penned by Commissioner Alberto R. Quimpo, and concurred in by Presiding Commissioner Bartolome S. Carale and Commissioner Vicente S.E. Veloso, First Division.

^[10] Belaunzaran vs. NLRC, G.R. No. 120038, December 23, 1996, 265 SCRA 800, 806 citing PCI Automation Center, Inc. vs. NLRC, G.R. No. 115920, 29 January 1996; Zanotte Shoes, Inc. vs. LRC, 241 SCRA 261 (1995); Morales vs. NLRC, 241 SCRA 103 (1995).

^[11] San Miguel Corporation vs. NLRC, G.R. No. 117055, March 29, 1996, 255 SCRA 580, 588.

^[12] Rollo, p. 28.

^[13] Dept. of Labor Manual, Sec. 4343.01, cited in C.A. Azucena, The Labor Code with Comments and Cases, Volume II, Revised Edition, 1996, p.662.

^[14] Asian Design and Manufacturing Corporation vs. Deputy Minister of Labor, 142 SCRA 79 (1986).

^[15] De la Cruz vs. NLRC, 177 SCRA 626 (1989).

^[16] Tanala vs. NLRC, G.R. No. 116588, January 24, 1996, 252 SCRA 314, 320, citing Soco vs. Mercantile Corporation of Davao, et. al., G.R. Nos. 53364-65, March 16, 1987, 148 SCRA 526.

^[17] Manila Electric Company vs. NLRC, G.R. No. 114129, October 24, 1996, 263 SCRA 531, 538, citing San Miguel Brewery Sales Force Union vs. Ople, 170 SCRA 25 (1989).

^[18] NLRC Resolution, Rollo, p. 48.

^[19] China City Restaurant Corporation vs. NLRC, 217 SCRA 443, 449 (1993), citing Philippine Airlines, Inc. vs. NLRC, 198 SCRA 748 (1991).

^[20] Abiera vs. NLRC, 215 SCRA 476, 481-482.

^[21] Ibid., p. 482, citing Llora Motors, Inc. vs. Drilon, 179 SCRA 175 (1989).